Northants birds

The weather for the past week was largely dry with overnight frost at the beginning of the period, although temperatures lifted as the week progressed, so much so that two Peacock butterflies were on the wing at Thrapston Gravel Pits on 16th. Attracting a host of rare gulls, the Ditchford/Sidegate area was firmly back in the limelight this week and an unseasonal Lesser Whitethroat in a Northampton garden generated both interest and debate at the week’s end.

Static wildfowl included the (probably resident) Barnacle Goose at Blatherwycke Lake until at least 13th and the two Egyptian Geese at Ditchford GP on 15th, while up to eleven Mandarin Ducks were counted at Blatherwycke Lake. A probable Marbled Duck evaded positive identification – and, most likely, recapture – at Stanwick GP on 13th. The only Pintail were at Stanwick GP, with one there on 16th and three the following day, while the two Red-crested Pochards remained at Ringstead GP on 12th, the drake Scaup was at Ditchford GP all week with another at Pitsford Res on 11th and

single Long-tailed Ducks remained on Mary’s Lake at Earls Barton GP until 12th with the Thrapston GP bird reported again on Town Lake on 16th. Up to three Smew, including one drake, were present at Pitsford Res, while two (one drake) remained at Ravensthorpe Res all week and a ‘redhead’ was seen at Clifford Hill GP on 14th.

The wintering juvenile Great Northern Diver remained at Pitsford Res throughout the period and the Bittern at Stortons GP was seen only on 12th, while up to two Great White Egrets remained at Pitsford Res, two were also seen regularly at Earls Barton GP/Summer Leys LNR and one visited Ditchford GP on 12th.

As with last week, the only scarce raptors reported were all Peregrines with singles in the Barnes Meadow area of Northampton on 11th and 13th, Earls Barton GP on 11th, Ditchford GP on 14th, Summer Leys on 16th and Harrington AF on 17th.

On the wader front, the solitary, early returning Oystercatcher remained at Stanwick GP all week, while sizeable Golden Plover flocks were c.1000 at Stanwick GP on 17th, c.500 in the Welland Valley at Gretton on 13th and 241 on levelled building land at Pineham, Northampton also on 17th. Two Jack Snipes were found at Hollowell Res on 11th and another was at Pitsford Res on 13th, a Black-tailed Godwit put in an appearance at Stanwick GP on 15th, while up to thirteen Redshanks were there all week.

Laridophiles were on to a good thing this week with Ditchford GP and Sidegate Landfill finally producing good numbers of scarce gulls, many of which regularly visited a flooded field between Wellingborough and the landfill. Three Caspian Gulls (an adult, ringed fourth-winter and a second-winter) were there on 12th with two adults at nearby Stanwick GP on 11th, 13th and 17th, being joined by a second-winter on the latter date. Yellow-legged Gulls were thinly spread, with single adults at Stanwick GP on 11th, 13th and 17th, a near-adult at Pitsford Res on 12th and an adult at Rushton Landfill with another at Finedon and a second-winter near Wellingborough also on 12th and an adult at Ravensthorpe Res on 16th. A second-winter Iceland Gull visited Ditchford GP on 11th and a first-winter was found at Finedon the following day, being seen in the Wellingborough area throughout the week and at Stanwick GP on 17th. Three Glaucous Gulls (an adult, juvenile and second-winter) visited the flooded field near Wellingborough on 11th and 12th with just a juvenile there on 15th and an adult at Stanwick GP on 17th.

No mass accumulation of gulls would be complete without the spectre of hybrids and the Wellingborough site attracted an adult Herring x Lesser Black-backed Gull hybrid on 11th-12th and examples of both juvenile and second-winter Herring x Glaucous Gull hybrids on the same dates. Elsewhere an adult gull considered to be a Yellow-legged x Lesser Black-backed Gull hybrid visited Pitsford Res on 12th.

A Great Grey Shrike was an unexpected find near Lowick on 17th while last week’s Bearded Tits were still at Stortons GP on 11th and 12th with the male – originally ringed there last autumn – being retrapped on the latter date. Single Chiffchaffs were present at Stanford Res on 11th, Ditchford GP on 12th and Pitsford Res on 13th, while at least two were at Stanwick GP on 16th and  up to nine were at Ecton SF during the same period, the same site hosting a Siberian Chiffchaff on 11th-12th.

Wintering Central European Blackcaps included two singles in gardens in Wellingborough on 15th and two in a Northampton garden all week

but potentially more interesting was a Lesser Whitethroat discovered in a Northampton garden on 17th, possibly having been seen there two weeks previously. As well as this being likely to constitute the first winter record of this species in Northants its racial identity is yet to be resolved, with ‘Siberian’ blythi being mooted as a possible candidate. The two wintering Stonechats were still in residence at Blueberry Farm, Maidwell on 16th and Bramblings were seen at just three localities, with a maximum of approximately thirty at East Carlton CP on 16th and a Hawfinch was reported at Fermyn Woods CP on 12th.

Continuing on a theme, an established south-westerly airstream brought intermittent showers and occasional heavy rain throughout the week. Water levels rose at reservoirs and gravel pits and localised flooding occurred, particularly in the Nene Valley, although a significant amount had drained away by the week’s end. Northamptonshire again failed to attract any Glossy Ibises from the ongoing national influx, estimated to involve at least thirty-five mobile individuals, despite occurrences in the neighbouring counties of Lincolnshire, Bedfordshire and Oxfordshire. There is still time …

The blistering Barnacle Goose remained at Blatherwycke Lake until at least 7th, two Egyptian Geese visited Pitsford Res on 4th while the usual two were still mobile around Ditchford GP the following day. The only Pintail were one at Stanwick GP and two at Pitsford Res on 4th with just one at the latter locality again on 6th, where up to six Red-crested Pochards remained throughout the week with two more at Ringstead GP on 10th and the drake Scaup still at Ditchford GP on the same date. The three Long-tailed Ducks remained on Mary’s Lake at Earls Barton GP

throughout the week, up to eight Smew, including three drakes, were present at Pitsford Res, while two visited Clifford Hill GP on 9th and Goosanders were reported from five localities with a maximum of eight at Abington Park Lakes, Northampton and Hardingstone GP on 6th.

The wintering juvenile Great Northern Diver remained at Pitsford Res throughout the period and the elusive Bittern at Stortons GP was seen on 6th and 10th, while up to two Great White Egrets were still at Pitsford between 4th and 8th and one remained at Earls Barton GP all week with two present there on 5th. The only scarce raptors reported this week all happened to be Peregrines with singles at Earls Barton GP on 7th, Harrington AF on 7th-8th, Clifford Hill GP on 9th and Great Brington and Ditchford GP on 10th.

Waders were similarly in short supply with Golden Plovers recorded at three localities, a Jack Snipe at Pitsford Res on 10th, Green Sandpiper at Ditchford GP on 10th and ten Redshanks at Stanwick GP on 4th was a reasonable total. Stanwick GP produced the majority of the rarest gulls – albeit in small numbers – with an adult Glaucous Gull and an adult Caspian Gull on 10th plus 3 Yellow-legged Gulls on 4th and 10th, while a  Mediterranean Gull was at Ditchford GP on 8th and single Caspian Gulls there on 4th and 5th.

The only Chiffchaffs this week were three at Ecton SF on 5th and one at Pitsford Res on 10th, two female Central European Blackcaps were in a Sywell garden on 4th and males were in two Northampton gardens all week, while two or three Bearded Tits were still at Stortons GP on 5th-6th and 10th. The two wintering Stonechats were still in residence at Blueberry Farm, Maidwell on 10th and Bramblings were seen at five localities with a maximum of twenty to twenty-five near Badby Wood on 5th.

For two weeks Britain has been in the grip of a series of low pressure systems which raced across the Atlantic bringing with them periods of strong south-westerly winds and rain. The deepest of these, a near-record low, occurred on 23rd although it had little influence on local birding.

A Barnacle Goose was again at Blatherwycke Lake on 21st and two Egyptian Geese were at Ditchford GP the following day while the only Pintail recorded during the period were at Pitsford Res, where there were up to two between 22nd and 2nd. The same site continued to host a sizeable Red-crested Pochard flock, the highest count of which was thirteen on 22nd, while a drake was at Stanwick GP between 26th and 28th. ‘Horrible hybrids’ included a Red-crested Pochard x Mallard also at Pitsford Res on 22nd and a drake Pochard x Ferruginous Duck at Stortons GP on 30th-31st. The drake Scaup remained at Ditchford GP, west of Ditchford Lane, until at least 1st and a female was at the other end of the complex, west of the A6 road bridge, on 27th with another female at Stortons GP on 30th. The three Long-tailed Ducks remained on Mary’s Lake at Earls Barton GP throughout the period.

Varying numbers of Smew were present at Pitsford Res, where the maximum was eight, including two drakes, on 27th, while single ‘redheads’ visited Stanford Res on 28th and Stortons GP on 30th and two ‘redheads’ were at Sywell CP on the latter date.

The rarest sawbill of the period was, however, a drake Red-breasted Merganser in Walgrave Bay at Pitsford Res on 26th while Goosanders were reported from seven localities with a maximum of fifteen at Stortons GP on 28th and 30th.

The juvenile Great Northern Diver found at Pitsford Res on 15th December remained throughout the period, as did up to three Great White Egrets while others put in sporadic appearances at Summer Leys LNR on 22nd and 2nd and another visited Cransley Res on 27th. A first-winter Shag was seen briefly at Stanford Res on 24th.

This week’s raptor round-up included a ‘ringtail’ Hen Harrier at Blueberry Farm, Maidwell on 29th, female Merlins at Stortons GP on the same date and at Blueberry Farm on 2nd, while a run of Peregrines included singles at Corby on 21st, Pitsford Res on 27th, Harrington AF on 31st and 2nd, Ditchford GP on 1st, Earls Barton GP, Edgcote, Kelmarsh and Stanwick GP on 2nd and Clifford Hill GP on 3rd.

The early returning Oystercatcher was still at Stanwick GP on 1st, while Golden Plovers were recorded at five localities with a maximum of approximately two thousand at Clifford Hill GP on 3rd. Just one Dunlin was found during the period – at Pitsford Res on 22nd – two Jack Snipe were at Hollowell Res on 28th, up to three Redshanks were at Pitsford Res with eight at Stanwick GP, while a Green Sandpiper was at Pitsford Res on 22nd and 2nd-3rd and two were at Wicksteed Park Lake on 23rd.

The last two weeks have been surprisingly quiet for gulls with an adult Caspian Gull in the roost at Pitsford Res on 22nd and 26th, an adult at Stanwick GP on 31st and an adult plus a second-winter there on 1st. The rather dark juvenile Iceland Gull (image in last report) was again at Ditchford GP on 1st and the only Yellow-legged Gulls were all adults with two at Pitsford Res on 22nd and one on 26th and one at Stanwick GP on 1st.

Two Ring-necked Parakeets flew over Pitsford Res on 3rd, a ‘Nordic’ Jackdaw was seen at Hanging Houghton on 23rd and, not too far away, the Hume’s Warbler remained in residence on private land in north Northants until at least 22nd. Other warblers not shy of the (so far) mild British winter were Chiffchaffs, which were reported from Pitsford Res, Preston Deanery and Stanwick GP and Central European Blackcaps, which moved into gardens in Byfield, Northampton (East Hunsbury, Harlestone Road and Kingsthorpe) and Sywell.

Three Bearded Tits appeared again at Stortons GP on 29th but potentially the rarest new bird to be found in the period was a Dipper, of which there was an unconfirmed report on the overflow at Sywell CP on 21st. The last record of Dipper in Northants was at Deanshanger on 20th April 1996 and another one staying for any length of time would no doubt be popular with local birders. The two Stonechats remained throughout the period at Blueberry Farm and a Water Pipit was again seen at Ditchford GP on 22nd and 1st, while Bramblings were seen only at Brixworth CP and Harrington AF, with a maximum of at least ten at the latter site on 2nd and a Snow Bunting put in a brief appearance at Pitsford Res on 22nd before quickly moving off south.