Rarity Round-up, 29th June to 5th July 2019

As Southern England basked in 34°C on the first day of the period, Northampton hit 30°C ahead of an overnight drop as cooler air moved in from the Atlantic, sweeping away the humidity and setting a dry and bright scene for the remainder of the week. A blink-and-you’ll-miss-it ‘first’ for Northamptonshire caught locals off guard, leaving them somewhat dazed, but is it really all over … ?

While the first-summer female Ruddy Shelduck remained at Hollowell Res, two Red-crested Pochards were at Pitsford Res on 3rd-4th and the peripatetic, post-captive female Bufflehead was once again back in the county, visiting Sixfields Lake at Stortons GP on 29th. It then decided to ‘do’ neighbouring Buckinghamshire, appearing at  Floodplain Forest NR, Old Wolverton on 2nd – just across the county line.

Female Bufflehead, Floodplain Forest NR, Wolverton, Buckinghamshire, 2nd July 2019 (Angi Harrell)

The run of largely unavailable Common Quails continued with one barely audible individual reported from Harrington AF on 1st. It’s now looking like a tricky year for this species.

Cattle Egret, Stanwick GP, 4th July 2019 (Steve Fisher)

Meanwhile, Stanwick GP’s two Cattle Egrets stuck around to feed by the main lake until at least 4th but another long-legged, largely white, wetland bird in the shape of a Sacred Ibis made headlines at Clipston on 3rd, as it sat around on a house roof, eyeing up the local chickens. An escape most likely but a wanderer from the established French feral population cannot be ruled out.

Sacred Ibis, Clipston, 3rd July 2019 (Steve Carpenter)

In a lean week for Ospreys, one flew over Deene Lake on 2nd and another was at Pitsford Res, early on 5th.

Black-tailed Godwits, Summer Leys LNR, 30th June 2019 (Ricky Sinfield)

Wader passage continued to trickle along with Summer Leys monopolising Black-tailed Godwits, the site producing one on 29th, four and a further eleven on 30th, 2 on 1st and thirty-five on 2nd.

Black-tailed Godwits, Summer Leys LNR, 30th June 2019 (Adrian Borley)
Black-tailed Godwits, Summer Leys LNR, 2nd July 2019 (Ricky Sinfield)

Double-figure flock sizes are no longer unusual – a far cry from when this species was an ‘irregular passage migrant’ in the 1970s, when there were just two or three records per year. Were all those birds islandica or did we get any limosa, during an era when they were more abundant in Europe? There have been large and well-documented declines in the mainland European breeding population of the nominate subspecies of between 50-60% (BirdLife International 2015). For example, in the Netherlands the population decreased dramatically from 120,000-135,000 pairs in 1969 potentially to 33,000 pairs in 2015. The population of islandica, in contrast, has been increasing dramatically over the past few decades, although this increase may be levelling out and this subpopulation represents a relatively small part of the global population. A recent analysis based on published literature, survey data and expert opinions from throughout the species range suggests that, overall, the global population may have declined at a mean rate of approximately 23% over 25 years leading up to 2015 (BirdLife International 2019). Also at Summer Leys, a male Ruff appeared on 5th.

Moving on to Larids, single Yellow-legged Gulls appeared at Hollowell Res on 2nd and at Stanwick GP on 3rd, ahead of the now established late summer build-up.

Yellow-legged Gull, Stanwick GP, 3rd July (Steve Fisher)

On the passerine front, there were 2 Common Redstarts – an adult and a juvenile – at  Arbury Hill, west of Badby, on 2nd. But making the most noise this week, a little gem pulled from a ringer’s net in Pitsford’s Walgrave Bay on 4th was quickly logged as the county’s first Red-breasted Flycatcher – a moulting adult female. Well, we didn’t see that one coming! The anticipated mass turnout for this Northamptonshire ‘first’ simply didn’t materialise and the resulting, incomprehensible lack of observer coverage subsequent to the event surely played a significant part in its not being relocated. A quick scamper through the literature reveals that July records are not unprecedented and Sharrock (Scarce Migrant Birds in Britain and Ireland, 1974) identifies an occurrence window between late April and early July and classifies these as spring migrants, with all records from mid-August onwards categorised, quite rightly, as scarce autumn visitors. Adults moult on, or close to, their breeding grounds between July and September, suggesting this is a non-breeder. Is it still out there … somewhere …?

Rarity Round-up, 22nd to 28th June 2019

After a dry start, the week went through a short dull and damp phase before becoming rather bright and breezy. Local winds remained mainly north/north-easterly while, nationally, a more southerly vector kicked in. Migration was expectedly slow for the masses, evidenced only by a handful of returning waders, while this week’s highlights, an audible European Bee-eater and a visible Spoonbill presented to just two lucky observers.

The first-summer female Ruddy Shelduck remained at Hollowell Res all week while, ducking and diving, three Red-crested Pochards appeared at Clifford Hill GP on 22nd during a period understandably quiet for wildfowl.

Following the Common Quail at Mears Ashby and Sywell on 15th, two were heard again at the first of these two localities on 23rd and one on 24th but their uncharacteristic reticence, shortly after discovery, made them immensely difficult to nail. One was also heard briefly near Kentle Wood, Daventry on 22nd before the locality fell silent. Local birders wanting to catch up with this species, this year, clearly need to be quick, quick, quick off the mark …

Stanwick GP’s two Cattle Egrets moved from its northern extremity to the main lake between 24th and 26th and at least one remained on 27th. Arguably better, though, was this week’s star bird, a Spoonbill which, unfortunately harassed by local Black-headed Gulls, failed in its attempt to alight on the scrape at Summer Leys LNR on 22nd and headed off high west instead. Of late, Spoonbill has been a much more difficult species to catch up with locally than Cattle Egret. Clearly rarer in terms of number of records, the latter has now provided many more available ‘bird-days’ than Spoonbill, which tends to be short-staying and highly transitory, with many fly-over records. One notable exception was a flock of eight, which remained in the shallows at Pitsford Res between 29th September and 14th October 1984, in the good old days, when the section north of the causeway featured mud, mud, glorious mud.

First-summer Spoonbill, Summer Leys LNR, 22nd June 2019 (Ricky Sinfield)

With regular Hollowell observers apparently AWOL this week, there were no reports of Ospreys from this site during the period. Instead, examples of this adept aerial angler were seen at both Pitsford Res and Thrapston GP on 22nd and at Biggin Lake, Oundle on 27th.

Osprey, Thrapston GP, 22nd June 2019 (Ady Leybourne)

Among small numbers of returning Common and Green Sandpipers, this week, was a Grey Plover, found at Ravensthorpe Res on 26th and four Black-tailed Godwits in flight over Summer Leys on the same date, while another Black-tailed Godwit was on the scrape at the latter site on 28th.

Totally eclipsing the Spoonbill in terms of sheer rarity, a European Bee-eater was heard calling three times in flight over Byfield on 28th, remaining frustratingly invisible to the finder. This would represent only the 4th for Northamptonshire, following accepted records in 1995, when 2 were at Ditchford GP on 5th May, in 1997 when one was at Oundle Cemetery on 13th May and in 2003, when one was near Badby on 31st May.

Not quite as colourful were two male Common Redstarts – one at Moreton Pinkney on 22nd and the other at Lamport on 26th. More to come as we move into July – the gateway to autumn.

Rarity Round-up, 8th to 21st June 2019

With below average temperatures, high winds and twice the month’s expected rainfall in two days, June is now odds on to be the wettest on record. The county was deluged by heavy rain during the first week of the review period, resulting in disaster for many ground-nesting birds around bodies of water and in other low-lying areas. Unsurprisingly, there were few new migrants reported.

Now seemingly ensconced at Hollowell Res, the first-summer female Ruddy Shelduck remained throughout the period, while the only other waterfowl conceivably vying for attention was a drake Red-crested Pochard at Pitsford  Res on 15th-17th.

The first Common Quail of the year was a singing male, just north of Mears Ashby, early on 15th. Unfortunately, it did not linger and it later emerged that what was very likely to have been the same individual was also reported singing from a field at Sywell, 2 km due west, on the same date. Although June is generally recognised as the month, this species is unpredictable in its occurrence in the county. The perception that it is becoming rarer locally is not necessarily true, as the analysis of records, below, illustrates. Occurrences peaked in Northants in the 1990s although, prior to that decade, with four blank years (1973-75 and 1985) Quails look to have been rarer than they appear to be today, which is surprising. But are they being overlooked? [see here]                                                                                                                          This species is declining as a result, in part, of uncontrolled netting of migrating birds, particularly in Egypt, where Quail trapping is now taking place on an unsustainable, commercial scale. In Europe agricultural intensification has led to the loss of rough grass and uncultivated land and an increase in the use of herbicides and insecticides, which has led to a reduction on the availability of weeds, seeds and insects. In Europe the population size is estimated to be fluctuating and Quail is on the IUCN Red List of Threatened Species (BirdLife International 2018, 2019).

Up to two Cattle Egrets remained at the northern end of Stanwick GP throughout, with one venturing south, down to the main lake, before flying toward Ditchford GP on 10th. Moving up the size scale, with none reported since 29th May, Northants did not manage to stay Great Egret-free for long, as one appeared at Thrapston GP on 14th.

Cattle Egret, Stanwick GP, 10th June 2019 (Steve Fisher)

Meanwhile, Hollowell maintained its reliability for Osprey sightings with one on 8th, 9th and 14th, while two were there on 12th. Elsewhere, singles visited Pitsford on 11th and Thrapston on 14th and 18th.

The adult Yellow-legged Gull remained at Hollowell between 8th and 14th, visiting nearby Ravensthorpe on 11th and another adult was at Stanwick on 17th, while the only passerine of the period was a Crossbill, which flew over Yardley Chase’s Denton Wood on 17th.

Rarity Round-up, 31st May to 7th June 2019

As we entered the summer lull, a westerly to south-westerly airstream initially brought a heady mix of mid-twenties temperatures and dry sunny conditions, later followed by sunshine and showers. ‘Storm Miguel’, a swirling low pressure system moving north from Iberia, brought rain on gathering south-easterlies at the very end of a not too species-rich period.

Last week’s newly arrived Ruddy Shelduck moved from Ravensthorpe Res and remained settled at nearby Hollowell Res throughout the period. Might it remain into the summer to moult and become temporarily flightless, as others have done in previous years?

First-summer female Ruddy Shelduck, Hollowell Res, 5th June 2019 (Mike Alibone)
First-summer female Ruddy Shelduck, Hollowell Res, 6th June 2019 (Jon Cook). The grey centres to the outer three greater coverts, just visible in the image, age this bird as a first-summer and the white face mask barely contrasting with the remainder of the rather worn and faded head sex it as a female.

In the first Great Egret-free week of 2019, remaining throughout were the three Cattle Egrets at the northern end of Stanwick GP, mirroring the small flocks currently residing in north Norfolk.

Osprey, Hollowell Res, 1st June 2019 (Alan Coles)
Osprey, Hollowell Res, 1st June 2019 (Alan Coles)

Coming to the fore, Ospreys were reported from five localities, with Hollowell – highest in the reliability stakes – producing birds on 31st, 1st, 2nd and 5th, followed by singles at Biggin Lake (Oundle) on 1st, Thrapston GP on 2nd, flying north over Irthlingborough on 3rd and at Pitsford Res on 5th.

The only migrant wader this week was a Grey Plover, found at Hollowell on 7th.

Little Tern, Wicksteed Park Lake, 31st May 2019 (Alan Francis)
Little Tern, Wicksteed Park Lake, 31st May 2019 (Alan Francis)

Further scarce migrants appeared in the shape of two Little Terns, surprisingly suburban, at Wicksteed Park Lake (Kettering) on 31st. Perhaps unsurprisingly, they did not linger and neither did the first-summer Arctic Tern, which appeared at Summer Leys on 1st.

First-summer Arctic Tern, Summer Leys LNR, 1st June 2019 (Matt Hazleton)
First-summer Arctic Tern, Summer Leys LNR, 1st June 2019 (Matt Hazleton)

An adult Yellow-legged Gull kept the larids afloat this week, with an adult mobile between Hollowell and Ravensthorpe on 5th.

Short-eared Owl, Grendon, 6th June 2019 (Ken Prouse)

Somewhat unseasonal for Northamptonshire, a Short-eared Owl was observed between Grendon and Easton Maudit on 6th, moving on after a brief interaction with a hunting Barn Owl.

Rarity round-up, 25th to 30th May 2019

The period’s weather fell under the influence of a westerly airflow, which brought intermittent sunshine and showers and, as it happens, very little change to the local birdscape. Topping the charts this week were three Cattle Egrets at Stanwick, all resplendent in summer plumage … and one up on last week’s total.

A late spring Ruddy Shelduck at Ravensthorpe Res on 29th, moving to nearby Hollowell Res the next day, was a tad earlier than would be expected for an overshoot from the European feral breeding population, many of which move north in the summer to moult in The Netherlands. This particular individual was unringed but that counts for little where this species is concerned.

The tally of Cattle Egrets in the county increased by 50% on last week’s total, with three at the northern end of Stanwick GP from 26th to 30th. They can often be difficult to see in the long grass and lightly undulating terrain chosen by the cattle. By contrast, the only Great Egrets reported were two at Summer Leys LNR on 29th.

Cattle Egret, Stanwick GP 27th May 2019 (Steve Fisher)
Cattle Egret, Stanwick GP, 29th May 2019 (Bob Bullock)
Cattle Egrets, Stanwick GP, 29th May 2019 (Bob Bullock)
Cattle Egrets and Little Egret, Stanwick GP, 29th May 2019 (Bob Bullock)

Continuing to put in erratic appearances throughout the week, Ospreys were again seen at Hollowell Res on 25th, Pitsford Res on 29th and Thrapston GP on 30th and they are likely to maintain their status as sole raptor representative within these reports … until something a little more exotic turns up, of course.

Osprey, Hollowell Res, 25th May 2019 (Alan Coles)
Osprey, Hollowell Res, 25th May 2019 (Alan Coles)

Wader passage has all but dried up. A Whimbrel dropped into Summer Leys scrape briefly on 25th and a Greenshank was on Round Island there on 30th and, of course, gulls are thin on the ground this time of the year, too. Maybe not too surprising was the appearance of an adult Mediterranean Gull at Summer Leys on 25th and another – or the same – at Stanwick GP on 28th. If they are breeding again somewhere, this year, then they are maintaining an ultra-low profile. Making a somewhat unseasonal appearance, a first-summer Caspian Gull appeared at Daventry CP on 30th.

Belated news of a Firecrest in a Braunston garden on 23rd May means that a passerine creeps into this week’s round-up. After a short video performance, it promptly disappeared.

Rarity Round-up, 18th to 24th May 2019

Another fine, largely dry week commenced with the convergence of two pressure systems over the central part of the country, producing only a few short-lived, local showers on northerly winds. Though fairly quiet, undoubtedly bird of the week was a Hoopoe, which stayed long enough to pose briefly for photos for just one lucky, right place, right time photographer …

Two Garganeys at Irthlingborough Lakes & Meadows (Ditchford GP) on 18th were this week’s sole representatives of their kind and it looks like we will have to wait until the autumn before the appearance of any further rare or scarce wildfowl – escapes and ferals notwithstanding.

Who would have thought it but this week saw more Cattle Egrets in the county than Great Egrets, when a second individual joined the herd at the northern end of Stanwick GP from 21st to 24th and the only Great Egret reported was one at Stanford Res on 19th and 22nd. Continuing the kaleidoscope run of Black-necked Grebes this spring, another was found at Clifford Hill GP on 18th but like the previous birds at Daventry CP, a couple of weeks back, it moved swiftly on.

Black-necked Grebe, Clifford Hill GP, 18th May 2019 (Andrew Cook)
Black-necked Grebe, Clifford Hill GP, 18th May 2019 (Mike Alibone)

A Marsh Harrier – unusually scarce this spring – appeared over Summer Leys LNR on 24th. For anyone yet to catch up with a local Osprey this year, the reservoirs in north-west Northamptonshire are often a good bet for picking up wandering individuals from the slowly expanding Midlands population. Singles this week visited Hollowell Res on 18th and 21st and Naseby Res on 23rd.

Marsh Harrier, Summer Leys LNR, 24th May 2019 (Ady Leybourne)
Osprey, Hollowell Res, 21st May 2019 (Jon Cook)

And with expanding populations in mind, some may wonder why we don’t seem to stumble across the odd migrant Corncrake, or two, given the proximity of the RSPB reintroduction project running since 2003 at the Nene Washes reserve near Peterborough. This is, of course, in response to their re-establishment in England being identified as a priority in the UK Biodiversity Action Plan. But it remains a true rarity and an unconfirmed report of a calling male between Dalscote and Gayton on 20th-21st remained exactly that, as numerous birders put in the hours throughout 22nd along the quiet, single-track road bordering the monoculture crop-field in which it was reported. Veterans will no doubt be casting their minds back to the famous singing male, which spent three weeks, sometimes showing well, in an overgrown and richly plant-diverse meadow adjacent to Billing GP in May 1972. Ah yes, those were the days …

First-summer Bar-tailed Godwit, Clifford Hill GP, 18th May 2019 (Mike Alibone)
Bar-tailed Godwits, Clifford Hill GP, 18th May 2019 (Mike Alibone)

And so to waders and two of the three Bar-tailed Godwits at Clifford Hill GP on 15th remained until 18th, with at least one still present the following day, while the Hollowell Sanderling stayed overnight on 17th, still being present the following morning. Refusing to be left out, Stanford Res cashed in on its bid for this species, producing one on the dam there on 22nd, while two more were found on the dam at Pitsford on 23rd.

Sanderling, Pitsford Res, 23rd May 2019 (David Smith)
Sanderling, Pitsford Res, 23rd May 2019 (David Smith)
Sanderlings, Pitsford Res, 23rd May 2019 (David Smith)

Meanwhile, a Greenshank spent four days at Summer Leys, from 18th to 21st. Passage of gulls and terns dwindled considerably.

The 18th produced single Black Terns at Clifford Hill GP, Stanwick GP and Pitsford Res, followed by a first-summer Little Gull at the latter locality the next day.

Saving the best until last – or maybe it’s just the way the systematic cookie crumbles – but when it comes to sheer style and flamboyance, Upupa epops everybody’s cork. In this instance, however, it was not to be and the masses missed out this week on the first Northamptonshire Hoopoe since 2015.

Hoopoe, Ditchford GP, 19th May 2019 (Trev Earl)
Hoopoe, Ditchford GP, 19th May 2019 (Trev Earl)
Hoopoe, Ditchford GP, 19th May 2019 (Trev Earl)
Hoopoe: Monthly distribution of records, 50 years, 1969-2018. (Background image Bob Bullock).

Glebe Meadow, ‘Home of Kasa Lake Alpacas’ and part of the Ditchford GP complex, was the venue chosen by this particular individual, which rapidly did a bunk after being harassed by Jackdaws but not before it was quickly caught on camera. There have been forty records in the last fifty years, during which there were twenty-nine blank years, a massive seven-year gap (1996 to 2003) with no records and a maximum of four records in any one year (1973). They are impossible to predict but May accounts for 35% of all records followed closely by April with 30%. How long will we have to wait until the next … ?

Rarity Round-up, 11th to 17th May 2019

A fine, dry week saw the pace of migration slow somewhat, although winds in the latter half were a keen north-easterly, turning to a strengthening easterly at the very end of the period. With all the summer visitors now in, speculation is running high on what might be found over the forthcoming two weeks.

Apart from a few thinly scattered Wigeon, the last vestiges of winter wildfowl remained in the shape of the first-summer Whooper Swan, still present at Thrapston GP until at least 12th, while the escaped female Bufflehead was seen again at Clifford Hill GP on 14th.

With singles at Thrapston on 12th-13th and one at Stanford Res on 16th, this week’s two Great Egrets doubled last week’s total but they generated little interest when compared with the reappearance of the Cattle Egret, back at the far north end of Stanwick GP from 12th until at least 14th. Assuming this is the same individual, which was last seen there on 23rd April, where has it been during the intervening period?

Away from the Nene Valley, roaming Ospreys continued to be reported, including singles at Stanford Res on 12th and at Hollowell Res on 13th and 16th-17th. Otherwise, it was a week of little action on the raptor front.

Male Ruff, Summer Leys LNR, 15th May 2019 (John Moon)
Male Ruff, Summer Leys LNR, 15th May 2019 (John Moon)

This was not the case with waders, however. With most of the occurrences in the Nene Valley, Summer Leys LNR produced two fabulously flamboyant male Ruffs from 14th until 16th with, following last week’s run, another Grey Plover there on the latter date. The week’s only Whimbrel was reported from Ravensthorpe Res on 11th while, back in the valley, two Bar-tailed Godwits were found at Clifford Hill GP on 14th, being joined there by a third the following day.

Bar-tailed Godwits, Clifford Hill GP, 15th May 2019 (Doug Goddard). Two of three present on this date.

Hollowell Res subsequently produced only the third Sanderling of the year so far, with one on Guilsborough Bay Point on 17th. Back at Summer Leys, following two Wood Sandpipers on the scrape last week, another turned up on 15th and two were present the next day, these figures being mirrored there by Greenshanks on the same dates. Five Greenshanks were at Ravensthorpe Res on 15th, followed by three more at nearby Hollowell two days later, on 17th.

After last week’s ‘big passage’, events this week were less dramatic when it came to Black Terns moving through the county. The 11th saw singles at Thrapston GP and Stanford Res, followed by three at the latter locality on 12th, two at Pitsford Res on 16th, with two also at Summer Leys/Earls Barton GP on the same date and two at Stanwick the next day.

Female Northern Wheatear, Clifford Hill GP, 11th May 2019 (Mike Alibone)

In terms of numbers, passerines were poorly represented over the past seven days. The Clifford Hill Northern Wheatears – looking very much like the ‘Greenlanders’ they surely are – had increased to at least five on 11th but had fallen back to two by 14th, while another two were found at Park Farm, Wellingborough on 11th.

Female Blue-headed Wagtail, Summer Leys LNR, 17th May 2019 (Mike Alibone)

A female presumed Blue-headed Wagtail appeared on the scrape at Summer Leys on 17th, although nothing about its appearance ruled out Grey-headed Wagtail but then, with flava wagtails, there is always that nagging complication of intergrades … Two Crossbills were mobile around Hanging Houghton on the last day of the period, apart from which, things were quiet.

Rarity Round-up, 4th to 10th May 2019

In a week when local temperatures remained depressed, Britain recorded one of its coldest May Day bank holidays on record and predominantly northerly winds and rain did their best to halt migration. Undeterred by the weather, migrants continued to push through, evidenced in the main by large numbers of hirundines and Common Swifts battling against the elements, alongside a notable second wave of Black Terns and a continuing northward movement of waders.

Summer visitors recorded arriving for the first time during the past week include:
10th May – Spotted Flycatcher, Daventry CP

Still in no apparent hurry to depart, the first-summer Whooper Swan remained at Thrapston GP until at least 8th, feeding with the resident Mute Swans in surrounding crop fields. Numbers of other wildfowl were, unsurprisingly, limited for early May but the monopoly maintained by Summer Leys LNR on Garganey was at long last broken when a drake appeared at Pitsford Res on 8th-9th, while the Summer Leys drake was still present, though elusive, on 10th. Stopping off on the latter date, two female Common Scoters were well north of the dam at Pitsford Res, while the escaped female Bufflehead, described as ‘legendary’ by BirdGuides, was back at Clifford Hill GP on the last day of the period. Since she was last seen there on 2nd, her roving nature has taken her up to South Yorkshire, where she spent at least two days at Old Moor, in the Dearne Valley, before returning to Clifford Hill!

Just one Great Egret, at Stanford Res on 4th-5th, ensured this species’ continued presence in the county this week but is that it now until its return in late summer?  After four Black-necked Grebes at Daventry CP, present for just one day, on 26th April, another appeared at the same site on 9th, again remaining for one day only.

Another week, another harrier – this time it was a Marsh Harrier which livened up Polebrook AF on 5th, following a Hen Harrier at the same locality last week but it was Ospreys which continued to steal the limelight. Pitsford produced multiple sightings of single birds on 4th, 7th and 10th, Hollowell yielded singles on 4th and 8th, with two there on 9th, one attracted unwanted attention from local gulls at Ravensthorpe on 8th and one was at Thrapston on 5th.

Osprey, Ravensthorpe Res, 8th May 2019 (Paul Crotty)

Wader passaged picked up more momentum after a relatively quiet period last week. Set against a backcloth of double-figure Dunlins and Ringed Plovers, scarcer species this week appeared in the form of two Avocets at Clifford Hill GP on 10th, following a run of Nene Valley occurrences earlier in the spring.

Avocets, Clifford Hill GP, 10th May 2019 (Mike Alibone)

More Grey Plovers also came through, including singles at Clifford Hill GP, Hollowell Res and Summer Leys – all on 8th, followed by two flying north-east over Pitsford the next day and another at Hollowell on 10th, while single Whimbrels were seen at Stanwick GP

Grey Plover, Clifford Hill GP, 8th May 2019 (Bob Bullock)

on 4th, Ditchford GP on 9th and at both Pitsford and Clifford Hill on 10th. But it was Bar-tailed Godwits which rose to prominence during the week, with one at Summer Leys on 4th and another there, showing well at different points around the reserve, for three days from 8th.

Whimbrel, Stanwick GP, 4th May 2019 (Mike Alibone)

Eighteen flew north over Pitsford on 8th, followed by another four over the next day. Pitsford also produced the only Sanderlings of the spring so far – one over north on 8th followed by a rather showy individual on the dam the next day. Back at Summer Leys, a Wood Sandpiper dropped on to the scrape before quickly departing on 7th and another followed the same pattern the next day, similarly moving on rather sharpish. Summer Leys has developed a track record as the classic locality for spring sightings of this species over the years.

Sanderling, Pitsford Res, 9th May 2019 (Bob Bullock)

After a week without any, Black Terns were back in the spotlight, being found at ten localities, including the county’s reservoirs as well as various sites along the Nene Valley. It seems likely that more than one hundred and twenty were recorded, the largest flocks of which were twenty at Stanwick GP on 7th, sixteen at Pitsford Res on 8th and twelve at Stanford Res on 7th.

Black Terns, Stanford Res, 7th May 2019 (Chris Hubbard)
Black Tern, Earls Barton GP, 8th May 2019 (Ken Prouse)
Black Tern, Earls Barton GP, 8th May 2019 (Ken Prouse)
Black Tern, Stanford Res, 8th May 2019 (Steve Nichols)
Black Tern, Stanwick GP, 10th May 2019 (Bob Bullock)
Black Tern, Stanwick GP, 10th May 2019 (Bob Bullock)

Two Little Terns also made the news – one reported at Ravensthorpe Res on 8th, the other stopping off briefly at Summer Leys the following day. Arctic Terns continued to pass through in small numbers throughout the week, with single-figure counts from eight localities, the highest being seven at Hollowell Res on 8th.

Little Tern, Summer Leys LNR, 9th May 2019 (Bob Bullock)

Passerines were thin on the ground. One of the two Ring Ouzels remained at Newnham Hill until 6th and a rather lean serving of Whinchats included singles at Earls Barton GP and Sywell CP on 4th and two at Clifford Hill GP on 9th-10th.

Male Whinchat, Sywell CP, 4th May 2019 (Ian Hicks)
Male Whinchat, Clifford Hill GP, 9th May 2019 (Bob Bullock)
Northern Wheatear and Whinchat, Clifford Hill GP, 9th May 2019 (Bob Bullock)

Northern Wheatears were still to be found in select locations. A single female was at Borough Hill on 5th, another lingered at Summer Leys from 5th to 8th, a male was found near Glapthorn on 6th and two were at Clifford Hill GP on 9th – this number having doubled by the following day. The smart male ‘Channel’ Wagtail, found at Stanford Res as long ago as 23rd April, has remained on site on the Leicestershire side of the reservoir ever since, venturing into Northamptonshire again on 10th.

Male ‘Channel’ Wagtail, Stanford Res, 9th May 2019 (Chris Hubbard)
Tree Pipit, Stanford Res, 7th May 2019 (Chris Hubbard)
Tree Pipit, Stanford Res, 7th May 2019 (Chris Hubbard)

Stanford also produced a Tree Pipit on 7th and, for a change, it wasn’t simply a fly-over – unlike the vast majority of reports of this former widespread breeder, now sadly reduced to scarce migrant status.

Rarity Round-up, 27th April to 3rd May 2019

Last week’s prolonged easterly airstream unfortunately broke down and gave way to winds from a westerly quarter, ultimately turning northerly at the week’s end. As a result, and in stark contrast to the last review period, passage migrants took a tumble in numbers, the heady flow of godwits and Little Gulls dried up and there was only one ‘first-time’ summer visitor reported.

Summer visitors recorded arriving for the first time during the past week include:
3rd May – Whinchat, Duston (Northampton)

Making it into May, the first-summer Whooper Swan was still footloose at Thrapston GP on 2nd. This species does not form pair bonds until two years old, so it’s clearly in no rush to go anywhere … just yet. Also at the same site, at least two of the three Pink-footed Geese were still with the Greylag flock on 30th. The county’s only  Garganey to date this year was the pair at Summer Leys, where they appeared settled until 30th, at least.

Drake Garganey, Summer Leys LNR, 30th April 2019 (Adrian Leybourne)

Not even the slightest hint of adrenaline was associated with the finding of a Bufflehead at Clifford Hill GP on 2nd. Yes, after almost a year’s absence, ‘Buffy’ was back. Since her initial discovery, at Clifford Hill GP in June 2017, this itchy-footed, attention-seeking female on the run from captivity has been doing her level best to tease birders the length and breadth of the country. Spring 2019 alone has seen her visiting Baston, Lincolnshire (30th March), Ouse Washes, Cambridgeshire (2nd-13th April), Potteric Carr, South Yorkshire (18th April), Ouse Washes again (19th April), Hanningfield Reservoir, Essex (21st April), Holme Pierrepont, Nottinghamshire (23rd April) and Fairburn Ings, West Yorkshire (27th-29th April).* Quite an amazing series of movements – assuming just one bird is involved.

Just three Great Egrets were present in the county this week, this total comprising singles at Daventry CP on 27th, Thrapston GP on 30th and Stanford Res on 1st. Following the recent good winter locally, another Hen Harrier, a ‘ringtail’, was seen at Polebrook AF on 29th but more commonly encountered nowadays are Ospreys, singles of which were seen at Pitsford Res on 28th and 29th, Hollowell Res on 30th, Daventry CP and Foxholes Fisheries (Crick) on 1st and Thrapston GP on 2nd and 3rd. Continued successful breeding, resulting in a growing population over the border at nearby Rutland Water, has led to a diaspora, with a number of pairs now having become established in the region around, but away from, Rutland. In this respect, we can look forward to this unique and magnificent raptor being more frequently encountered locally with every passing year.

Waders this week were in short supply. Whimbrel numbers nudged three, with singles over Boddington Res and at Summer Leys on 27th and again at the latter locality on 30th. We scraped just one Black-tailed Godwit – at Ditchford GP on 27th – while Summer Leys produced the only Bar-tailed Godwits, with singles there on 27th, 2nd and 3rd.

The trickle of Arctic Terns continued this week, most occurring on 27th, upon which twos were at Clifford Hill GP, Hollowell Res and Stanford Res, one was at Pitsford Res and up to eighteen were at Boddington Res. Stanford produced a loner on 30th and two were at Pitsford on 3rd. Meanwhile, the locally roving pair of adult Mediterranean Gulls cruised east over Summer Leys on 28th.

Passerine passage enjoyed a bit of a revival compared to last week’s low numbers and rather narrow species mix. This week’s star attraction arrived in the shape of two rather classy female Ring Ouzels, which graced Newnham Hill on 30th, following one there on the previous day and one remaining until 2nd.

Ring Ouzels, Newnham Hill, 30th April 2019 (Mike Alibone)

A ‘female-type’ Black Redstart was reported from St Peter’s Church at Deene on 28th. Said to have been present for several days, it was nowhere to be seen on 29th. A Common Redstart was at Blueberry Farm, Maidwell on 27th and single Northern Wheatears were Summer Leys on 28th, Harrington AF on 29th-30th and at Moulton on 30th and a male Whinchat was found at Duston (Northampton) on 3rd.

Female Northern Wheatear, Moulton, 30th April 2019 (Darryl Sutcliffe)

The rather smart ‘Channel’ Wagtail at Stanford Res lingered into the new week but wasn’t seen again after 27th, while the number of White Wagtails totaled just two, at Hollowell Res on 27th and at Summer Leys on 3rd.

* information courtesy of Josh Jones (BirdGuides)

Rarity Round-up, 20th to 26th April 2019

The generally easterly airstream continued to dominate, moving round to the south-east before eventually swinging south-west as ‘Storm Hannah’ approached at the week’s end. Local temperatures hit 24°C on 22nd, after which they fell away and showers ensued from 24th. Little Gulls and passage waders took centre stage, while summer visitors continued to arrive in small numbers.

Summer visitors recorded arriving for the first time during the past week include:
22nd April – Hobby, Blisworth
25th April – Common Swift, Daventry CP and Pitsford Res

Still there … the first-summer Whooper Swan entered another great week at Thrapston GP by remaining throughout, and the equally pitbound three Pink-footed Geese also nudged in on 20th, at least two of them still being present on 26th, while another pinkfoot visited Clifford Hill GP on 22nd. Summer Leys LNR again claimed exclusivity on the Garganey front, the drake there being joined by a female from 22nd – both appearing settled and staying throughout the week. The period’s token Red-crested Pochard – a drake – was at Clifford Hill GP on 23rd.

Whooper Swan, Thrapston GP, 22nd April 2019 (James Underwood)

Last week’s Cattle Egret remained with the herd of cows at the northern end of the Stanwick GP complex until at least 23rd and three Great Egrets were pushing the envelope at Thrapston on 20th and 26th, in contrast to singles only at Stanwick on 20th-21st, Grafton Regis on 21st, Stanford Res on 25th and Daventry CP on 26th.

From plain white to full kaleidoscope colour – well, almost – unarguably the most attractive find of the week was four gorgeous summer-plumaged Black-necked Grebes at the southern of Daventry CP on 26th. Ones and twos have occurred before but four together is unheard of in recent times, if not unprecedented.

Black-necked Grebes, Daventry CP, 26th April 2019 (John Moon)

On the raptor front, Marsh Harriers appeared in the Nene Valley at Summer Leys and adjacent Mary’s Lake on 20th and 22nd respectively – the first of these sporting green wing-tags, indicating it had been ringed as a nestling in Norfolk, by the North West Norfolk Ringing Group, sometime between 2011 and 2017.

Osprey, Ravensthorpe Res, 22nd April 2019 (Jonathan Cook)
Osprey, Hollowell Res, 23rd April 2019 (Bob Bullock)

Single Ospreys were seen in flight on 22nd at Pitsford Res, Ravensthorpe Res, Stanford Res and Stanwick GP, on 23rd, 24th and 26th at Hollowell Res and on 25th again at Pitsford Res.

Avocet, Summer Leys LNR, 20th April 2019 (Bob Bullock)

Wader numbers ramped up with, as usual, the Nene Valley Flyway offering the most attractive habitat for pit stops. Heading the species cast, two Avocets arrived at Summer Leys on 20th and two also visited Ditchford GP’s Irthlingborough Lakes & Meadows LNR the following day.

Whimbrel, Stanford Res, 25th April 2019 (Chris Hubbard)

More Whimbrels came through, with twos at Clifford Hill GP and Summer Leys on 23rd, followed by three different individuals at Stanford Res on 25th and two again at Hollowell Res on 26th. In terms of sheer numbers of waders, Summer Leys had the lion’s share, with a single Black-tailed Godwit on 22nd, two on 23rd and a rather regal forty-seven, briefly, on 24th. Elsewhere, there were two at Thrapston GP on 23rd. Similarly, Bar-tailed Godwits at Summer Leys followed suit, with twenty-eight through east on 22nd, up to three different individuals on 23rd and two more on 24th. The 24th also saw two at Stanwick GP and singles at Hollowell Res and Clifford Hill GP, while the latter site produced a different, lingering bird on 25th-27th.

Black-tailed Godwits, Summer Leys LNR, 24th April 2019 (Steve Brayshaw)
Black-tailed Godwits, Summer Leys LNR, 24th April 2019 (Steve Brayshaw)
Bar-tailed Godwit, Summer Leys LNR, 24th April 2019 (Steve Brayshaw)
Bar-tailed Godwit Clifford Hill GP, 25th April 2019 (Bob Bullock)

Back at Summer Leys, the spring’s first Turnstone was found, along with a Ruff on 25th and, hot on the heels of the first last week, four more Greenshanks comprised singles at Pitsford Res on 20th, Stanford Res on 21st and Clifford Hill GP on 23rd and 25th.

No late April would be complete without the appearance of at least one Little Tern and so it was, on 25th, two appeared – one at Boddington Res, hanging around long enough to be photographed and the other putting in a brief appearance at Thrapston GP.

Little Tern, Boddington Res, 25th April (Mike Pollard)

More Black Terns continued to trickle through with two at Clifford Hill GP on 20th, followed by two at Thrapston GP on 22nd-23rd and singles at Stanford Res and again at Clifford Hill GP on 25th. Small numbers of Arctic Terns also made their way through the county in small numbers, with Thrapston GP producing one on 22nd while, on 23rd, Summer Leys produced two, Clifford Hill GP two, Stanwick two and Hollowell two and, on 25th, two were at Boddington and three at Pitsford. The 22nd-23rd delivered this week’s quota of Little Gulls with the first of these two dates seeing seven at Summer Leys, four at Clifford Hill and two at Thrapston, while the following day the same sites held twelve, four and one, respectively.

Little Gulls, Summer Leys LNR, 22nd April 2019 (Bob Bullock)

Meanwhile, the roving pair of adult Mediterranean Gulls cruised over Stanwick twice on 22nd before again moving to Summer Leys later the same day, prior to being observed copulating there on 23rd. A lone, first-summer dropped into the Black-headed Gull colony at Stanwick, briefly, on 22nd.

Adult Mediterranean Gull, Summer Leys LNR, 23rd April 2019 (Bob Bullock)
First-summer Mediterranean Gull, Stanwick GP, 22nd April 2019 (Mike Alibone)

Passerines took a bit of a back seat this week. Northern Wheatears were reduced to two at Harrington AF on 20th and one there on 25th, plus singles at Summer Leys on 23rd and near Upper Benefield on 26th.

‘Channel’ Wagtail, Stanford Res, 24th April 2019 (Steve Nichols)
‘Channel’ Wagtail, Stanford Res, 24th April 2019 (Dan March)

The undoubted star, however, was a smart ‘Channel’ Wagtail, which graced the dam at Stanford Res during the evenings of 23rd-25th, while the number of White Wagtails logged fell again to just two – one at Hollowell on 23rd and the other at Clifford Hill on 25th.