The first Slavonian Grebe since 2018 was April's rarest sighting @samodonnell25.bsky.social
Walthamstow Birders
Notes from the birders of Walthamstow Marshes SSSI, Walthamstow Reservoirs and WaterWorks Nature Reserve.
Thursday, 7 May 2026
Reservoir Logs - April 2026 round-up
Sunday, 19 April 2026
March 2026 round-up
Marsh Harrier, Rock Pipit and the continuing, and increasingly tame, White-fronted Goose were among the highlights of a pretty predictable March. Twelve species - without anything too out-of-the-ordinary - were added to the year list including the first summer visitors in Sand Martin, Wheatear and Willow Warbler.
.................as were this pair of Red-crested Pochard @samodonnell25.bsky.socialThe additions also included Redshank and Oystercatcher which might normally have been expected before March as well as Avocet, which in recent years has become a regular visitor. Red-crested Pochard, Great White Egret, Rook and Mediterranean Gull, which are more irregular but usually annual, were also recorded. Across March 89 species were seen - three less than last year - while the annual total so far stands 99, the same as in 2024 but five behind 2025.
The White-fronted Goose showed no sign of wanting to leave for good@samodonnell25.bsky.socialThe Wetlands may have been one of the last sites to attract a visitor fron this winter's mini-invasion of Russian White-fronted Geese into the UK but, unlike most which have already returned east, our immature seems in no hurry to depart. It remained faithful to the grass banks of Lockwood and High Maynard throughout the month and is now almost as tame as the accompanying Greylags and Canada Geese. The flock of Barnacle Geese also remain with at least two pairs continuing to show signs that they will attempt to breed.
The same is true of Shelduck with several pairs around the site. A pair of Red-crested Pochard joined the Sunday crowds on the 22nd. If the past is any guide, their one-day appearance may again be the only record of the year. The female Scaup stayed on West Warwick until at least the 20th. Having been found at the end of January, it is the longest stay by the species in recent years. The wintering Goldeneye may have departed as early as the 6th with just a one-day record, perhaps a bird passing through, on the 16th.
Marsh Harrier over high in the gloom @samodonnell.bsky.social
March is always a good month for birds of prey and scarcer corvids. Single Red Kites were seen on five days with two on the 14th and 29th. Two Buzzards were also seen on the 26th with lone birds on three other days. SD picked up the first - and perhaps only - Marsh Harrier of the year on the 8th, the exact same day as he did in 2025. Jackdaws were regular while Rooks were seen on at least three days.
The second Curlew of the year was again on Lockwood @LolBodiniThe same consistency was also shown by Avocets wth five flying south on the 18th, the same date as the first sighting last year. They were among the seven wader species recorded with the first Redshank on the 6th and Oystercatcher on the 9th, both later than is often the case. The 9th also saw the only Green Sandpiper of the month while LB picked up the second Curlew of the year on Lockwood on the 25th. Two Common Sandpipers were seen into April while the numbers of Common Snipe roosting on the East Warwick island dwindled away as the month went on.
Two Great White Egrets passed over high @samodonell25.bsky.socialThe only Mediterranean Gull of the year so far was an adult over Low Maynard on the 1st while the first two Great White Egrets flew through on the 22nd, three days earlier than the first record last year. Both species were picked up and photographed by SD. Little Egrets and particularly Grey Herons are already well into their breeding cycle.
Another indication that Spring has arrived is the appearance of the first summer visitors. The first Sand Martins were seen on the 7th - three days earlier than last year - while the first Wheatear was on the 13th, eight days ahead of 2025, It can often be quite a wait for more to come but not this year with single Wheatears on the 16th, 25th, 26th and 30th and two on the 24th, 28th and 29th.
It was a good month for Wheatears at the Wetlands @sameodonnell25.bsky.socialBlackcap song was a familiar sound by the end of the month but we had to wait until the 28th - three days later than last year - to hear the first Willow Warbler. A singing Siberian Chiffchaff was found by CF on the 22nd and remained until the 24th at least. The wintering pair of Firecrest stayed until the middle of the month.
Single Skylarks passed through on the first and last day of the month while the first Rock Pipit made a brief appearance on the 7th. Both Redpoll and Siskin were more regular than is often the case with Redpoll recorded on at least three days and Siskin on six including a flock of 10 on the15th.
A Redpoll showed well by the entrance pic @DDDB @davidbradshaw1952.bsky.social
Saturday, 7 March 2026
Reservoir Logs - February 2026 round-up
A long-staying White-fronted Goose - the first to land at the Wetlands for five years - enlivened what was, as usual, a pretty dull month. February also saw the more expected Skylark, Buzzard, Wigeon and an early Curlew added to the year list while the Scaup and Firecrests continued their stays. Across February, 80 species were seen with the five additions taking the year list to 86 which, in a remarkable show of consistency, is one more than last year but one behind 2024.
The Barnacle Goose flock began to prepare for the breeding season with at least one pair showing interest again in the No 5 islands. It had looked as if the Wetlands was going to miss out on the big influx of Russian White-fronted Geese into the UK this winter. The omission was put right when a 1W bird was found early on the 11th feeding on the grassy banks of Lockwood with Canada Geese and Greylags. It continued to be seen regularly but only early mornings always in the same area for the rest of the month,
White-front showing small size and dainty pink bill pic@davidbradshaw1952.bsky.socialThe first Wigeon of the year was picked out by FSJ flying over No 4/5 on the 20th. The 1W female Scaup remained all month at the south end of West Warwick. The highest daily count of Goldeneye crept up to four although more than four different birds were seen across the month. Just like January, there was only one record of Goosander although this time it was a female briefly over Lockwood on the 2nd.
The female Scaup with accompanying Tufted Ducks pic @samodonnell25.bsky.social
Single Red Kites were seen on three days with the first and sole Buzzard of the year so far on the 2nd. Four species of wader were recorded - one more than last year - but only the Curlew which came off Lockwood early on the 24th was at all unexpected. A single Lapwing was seen on the 1st with a flock of five on both the 13th & 15th. Two Common Sandpipers remained all month largely on High Maynard while as many as six Common Snipe continued to roost inside the East Warwick island where the removal of vegetation has made viewing much easier than in the past.
The Wetland's breeding gulls were already back on territory by the end of the month with Lesser black-backed and Herring Gulls pairing up on the islands and dozens of Black-heads noisily staking claims on the Lockwood rafts. They again helped attract scarcer species with a Yellow-legged Gull on the 16th and a 1W Caspian Gull on the 23rd,.
East Warwick attracted this young Caspian Gull pic @AWOur celebrity Kingfishers are already showing signs of breeding as well with plenty of courtship chasing. There is no sign, however, of Ravens nesting in the immediate surroundings although a pair were seen on pylons just outside the Wetlands on several days but only early in the month. The odd Jackdaw was also seen passing over.
Skylarks bookended the month with the first of the year on the 1st and a second on the 28th. They are among the first signs that Spring migration is underway as is an increase in the number of Stonechats. The first passage birds away from West Warwick were seen on the 25th - a week later than the last two years - with at least five scattered around the site and six on the 27th.
The Firecrest pair have spent the winter on West Warwick pic @samodonnell25.bsky.socialThe wintering pair of Firecrests continued to be seen occasionally on West Warwick with what may have been a separate bird by the Engine House on the 21st. There was no pick up in the small number of wintering thrushes with just the odd Redwing and Fieldfare. A Redpoll on the 26th and 28th in silver birch around the main carpark.
A single Redpoll was around the car park at the month’s end pic @SJNDB @davidbradshaw1952.bsky.social
Saturday, 7 February 2026
Reservoir Logs - January 2026 round-up
Once regular, this Scaup was the first for two years pic @chris-farthing.bsky.social
A fly-over Great Northern Diver, Scaup and Woodcock were the highlights of the first month of 2026. After a determined team effort saw 66 species counted on New Year's Day, January’s total reached 82 - two more than last year but one behind 2024.
The Barnacle Goose flock remained all month, roosting overnight on the south side and feeding largely on the playing fields. Shelduck continued to be slow to return but four birds were back by the 25th.
The Scaup stuck to the south end of West Warwick pic @samodonnell25.bsky.socialThe reservoirs were once a regular site in London for Scaup, helped by a drake which wintered on No 4 until 2023. But they have become much scarcer recently with a male for just two days in 2024 and no sightings at all last year. So the 1W female found by CF on the 30th on West Warwick was welcome particularly as it stayed into February.
A trio of drake Goldeneye graced the Wetlands pic @samodonnell25.bsky.social
Goosander are also getting scarcer with the only record a brief visit by a drake to Lockwood on the 22nd while the peak count of Goldeneye was at most four on the 31st. When this monthly round-up began in 2017, the highest count for Goldeneye in January was 13 and six for Goosander.
Five species of waders were seen including a good cold weather passage of Lapwing. Around 25 were counted in the 4th, 170 next day and still 87 on the 6th followed by singles on the 23rd & 29th. Having waited almost two years for a Woodcock, SD had the second in consecutive months at the south end of No 3 on the 11th although, unusually, it proved too fast for his camera trigger finger.
Up to six Common Snipe could be seen roosting in the 'doughnut' in the middle of East Warwick island across the month. At least two Common Sandpipers are wintering, mainly on High Maynard. High water levels in the flood relief channel saw a Green Sandpiper again pushed onto Lockwood on the 10th.
A smart Caspian Gull was seen regularly early in January pic @MDA 1W Caspian Gull was picked out by RE on High Maynard on the 2nd and was seen occasionally until the 16th. Two days later, a young Yellow-legged Gull was found on Lockwood. By the end of January, Black-headed Gulls were already gathering around the Lockwood rafts ready for the breeding season. Ravens, once almost mythical at the Wetlands, continue to make regular visits with a single over on the 8th and two on the 19th.
Another species becoming more regular, if very much on the opposite side of the size spectrum, is Firecrest. A single was found by GJ at the south end of West Warwick on the 30th with two next day. They seem from the ringed male to be the same pair recorded in the same area in November. West Warwick was also the favourite haunt of up to three Stonechats.
Two Redpoll made brief appearances early in the month pic @samodonnell25.bsky.socialA female Blackcap , again likely to be the same bird seen last month, was around the car park boardwalk on the 2nd. Winter thrushes continue to be scarce although a flock of 20+ Redwing fed occasionally in the berry bushes by the Engine House and 17 Fieldfare passed over on the 25th. There were also a few records of winter finches with Redpoll on at least three days including one caught on the 19th and Siskins recorded occasionally in very small numbers including on the 1st, 6th and 10th.
DB @davidbradshaw1952.bsky.social
Sunday, 4 January 2026
Reservoir Logs - December 2025 round-up
A Christmas Eve visit from two Bewick’s Swans - the first record for 12 years - was the stand-out record of December. The month, which finished well after a very slow start, also saw two fly-over White-fronted Geese and the only Woodcock of the year as well as the re-appearance of the Ravens and unseasonal Little Gulls and Common Whitethroat.
In all, 81 species were seen across December, two less than in 2024. The three additions to the annual list means it finished on 148, again two short of last year's record but still the second highest ever total. Scoter and Common Redstart - both for the second year running - Mandarin, Scaup, Short-eared Owl and Ring Ouzel were among the species missed which might have been expected. But there was plenty to enjoy in 2025 including Red-necked Grebe, Ruff, Honey-Buzzard, Hoopoe, Bittern and Yellow-browed Warbler along with successful breeding by Little Owls and remarkable passage of both Brent Geese and Bar-tailed Godwits.
Two fly-over White-fronts were part of a mini-invasion pic @samodonell25.bsky.socialOur flock of 14 Barnacle Geese continued to roost on the reservoirs and feed on the neighbouring playing fields. But they were eclipsed by two White-fronted Geese , well picked up by SD after they had been seen flying south high over at nearby KGV reservoirs on the 30th. They are the first record of White-fronts since 2020 when, during a similar influx from Europe, a single bird spent several weeks on the reservoirs.
Bewick’s Swans flying in to East Warwick pic@samodonnell25.bsky.socialThe White-fronts were part of a cold weather movement of wildfowl into the UK in late December which also saw an early Christmas present with the arrival of two Bewick’s Swans arrive on the 24th. They were watched flying in by SD mid-morning before landing on East Warwick where they stayed all day, drawing in a stream of birders to enjoy a true London rarity. They are the first at the Wetlands since 2013 and seem to be the first to have landed this century. Individual Bewick’s can be identified by the pattern of yellow on their bills so we know that they continued on to the WWT reserve at Slimbridge 120 miles to the west where they had arrived by Boxing Day.
Fewer Wigeon than usual were seen despite the cold weather pic @samodonnell25.bsky.socialBy the end of December, several Shelduck might normally have been expected back at the Wetlands from their post-breeding moult but the only record was one on the 20th. Wigeon were also scarcer than usual, with just singles on the 23rd and 31st and a pair on the 30th. Goldeneye numbers, too, were down with two drakes on the 19th, 22nd and 27th the highest count. This was better than Goosander with no records at all over December when, even a decade ago, there would have been regular sightings across the month.
Goldeneye were also down but this drake was approachable pic @chris-farthing.bsky.socialGreat White Egrets were seen early morning on the 27th and 29th, perhaps emerging from the Little Egret roost on the south side. The only Buzzard was on Christmas Eve although others were seen heading towards the Wetlands from Walthamstow Marsh.
Up to three Snipe roosted in the East Warwick island pic @Ivorh.bsky.socialFive species of waders were seen with the best a Woodcock which came off the grass side of Lockwood on the 12th, the only record of the year. Up to three Common Snipe were seen regularly in the East Warwick island while at least two - and perhaps three - Common Sandpiper are wintering at the Wetlands with a single Green Sandpiper seen on the 21st. The cold weather saw two Lapwing arrive on the 23rd before at least 100, including a flock of 66, passing over next day.
An adult Little Gull was a double bonus on Christmas Eve pic @samodonnell25.bsky.socialIn a remarkable co-incidence, a Little Gull which is normally a Spring bird was found for the second consecutive Christmas Eve at the Wetlands. As remarkable, it was being watched by SD when he saw the Bewick’s fly in, the second month in a row that two rarities were spotted by the same person from the same place at the same time following CF's Bittern/Yellow-browed Warbler double in November. More evidence of how far birds travel to the Wetlands came in a Common Gull rung in Bremen in Germany.
Ravens, whose regular appearances have been one of the highlights of the year, returned after an absence of a few weeks with a single on the 17th and a pair on both the 19th and 24th. Kingfishers continued to show well with many sightings on the Coppermill both north and south of the main road.
A December Common Whitethroat is highly unusual pic @samodonnell.bsky.socialThere was a better showing than normal from warblers with a Common Whitethroat, the first winter record since 2012, photographed by SD on the 13th. Single Blackcaps, usually rare at the Wetlands in winter, were seen on the 11th and 30th and two on the 5th. 'Siberian' Chiffchaffs were also regular with two caught on the 3rd.
It continues to be a poor winter for Redwing and Fieldfare with numbers feeding on the berries remaining in the low single figures. Three Stonechats continue to winter, usually on West Warwick, while single Siskin were seen on the 6th and 14th with a pair of Redpoll at the Sensory Garden on the 24th. Up to six Reed Buntings could be seen feeding on the seed heads in No 1 reed bed on calm days throughout the month.
DB @davidbradshaw1952.bsky.social
Monday, 1 December 2025
Reservoir Logs - November 2025 round-up
November brought a showy Bittern , the first since 2012, the fourth ever Yellow-browed Warbler and a remarkable one-day passage of Brent Geese. Both the Bittern and Yellow-browed were found on the same morning from the same spot by the same observer - CF - to rescue what had been, up to then, a pretty dull month. In all, 84 species were seen across November, four fewer than than last year while the two additions mean the annual total so far stands at 145 compared to 2024's record 147.
Brent Goose are annual at the reservoirs but usually just single birds which drop in for a brief time during migration to rest. So the flocks picked up high going south down the Lea Valley on the 16th were very unusual. The first grouping of 70+ over the Wetlands were seen by LB to be followed by more following the same track over the next 90 minutes. As different flocks were seen by different observers, it is difficult to say the number of birds involved but it is possible that as many as 200 Brents passed over the reservoirs.
Brent flocks headed south over the Wetlands pic @samodonnell25.bsky.socialIt was a slow month for ducks. A single Shelduck made a one-day appearance on the 19th. The young drake Goldeneye, which first arrived in late October, stayed around until the 8th but no others were seen. Goosander are no longer regular visitors with the only records on the 12th and 13th while, unusually, no Wigeon were seen at all.
The Bittern put on a good show early morning @chris-farthing.bsky.socialOnly four species of waders were seen - three down on last year's total. The most unusual record was the second Grey Plover of the year which made a brief stop on High Maynard on the 19th during the cold snap. The same conditions also saw two additional Common Sandpipers join the wintering bird on the 17th & 18th while as many as 34 Lapwing arrived the same morning as the Brent passage on the 16th. Pairs were also seen on the 17th, 21st and 27th with another on the 13th. Roosting Common Snipe were seen regularly in the pond in the middle of the East Warwick island across the month.
Birds of prey, apart from regular appearances by the local Peregrines, Sparrowhawks and Kestrels, were scarce with just a single Buzzard on the 17th and Red Kite on the 28th. A Rook, which remains very uncommon at the Wetlands, was seen by SD on the 21st while the largest number of Jackdaws was a flock of 25 going west on the 16th. Wood Pigeons also passed over in good numbers in the first half of the month with an estimated 1000+ going south on the 5th. Passage was also seen with Skylarks on the 8th, 9th and 12th.
The Yellow-browed very occasionally showed well pic @samodonnell25@bsky.socialThe first Yellow-browed Warbler was only seen at the Wetlands in October 2020 with just two more records, including one caught by the ringing team, last year. CF heard the fourth calling near the Dragonfly Pond on the 21st as he was watching the Bittern he had found just an hour before. Unlike the Bittern, the Yellow-browed was reported until the end of the month although remaining elusive and easier to hear than see. Two Firecrest were seen on the 1st including presumably a bird rung in October with a Siberian Chiffchaff the next day. Both male and female Blackcaps, which usually go missing in the winter months, were reported occasionally.
Firecrest are becoming more regular pic @samodonnell25.bsky.socialStonechats are again wintering with a maximum count of five on the 7th. Winter thrushes remain scarce. The odd one was seen bird feeding around the reservoirs but the highest count of Redwing was 15 on the 5th with 25 Fieldfare on the 22nd. Nor was it a particularly good month for winter finches with four Redpoll on the 10th and a single on the 16th with the only Siskin a fly-over on the 28th.
DB @davidbradshaw1952.bsky.social
Reservoir Logs - April 2026 round-up
The first Slavonian Grebe since 2018 was April's rarest sighting @samodonnell25.bsky.social Slavonian Grebe, S...
-
An adult Little Owl keeping watch over its young @samodonnell25.bsky.social ...
-
A confiding Avocet spent the morning on High Maynard pic @lolcumming The generally mild weather helps explain why the winter ...
-
Osprey getting the usual warm Wetlands welcome pic @samodonnell25.bsky.social Osprey, Little Owl and, per...







