1st – The Hogsmill Sewage Works produced 4 Rooks flying east, 9 Shoveler and 2 Shelduck. Two Water Rail were present there the following day and 1 on the 3rd.
7th – A Peregrine was noted in Kingston-upon-Thames and a pair there on the 13th.
9th – Three Goldeneye and an Oystercatcher were on Walton Reservoir (Knight and Bessborough) and a Green Sandpiper was nearby on Chelsea & Lambeth Reservoir. Three Scaup were located on Island Barn Reservoir.
10th – The first migrant Chiffchaff was singing on Tolworth Court Farm and 2 Little Egrets were at Kempton Nature Reserve.
11th – Unusually 2 Wigeon were at Hogsmill Sewage Works together with 10 Shoveler and 20 Linnets.
12th – Seven Common Snipe, and a Little Egret were at Kempton Nature Reserve.
14th – Three Scaup (2 to the end of the month), 2 Common Buzzards and 2 Glaucous Gulls were at Island Barn Reservoir. Two Little Egrets were flushed from the Tolworth Brook at Hook.
15th – Four Redwings were in Fishponds Local Nature Reserve, with a very early Willow Warbler and 5+ Chiffchaffs.
16th – A Red Kite flew high W over Island Barn Reservoir and a Water Rail was still at Hogsmill Sewage Works.
18th – Sixty Siskins at The Ledges during a survey.
19th – A Peregrine at Kingston upon Thames and present there to the end of May.
20th – Common Snipe, Green Sandpiper and Water Rail were at Hogsmill Sewage Works and all still present on the 25th.
21st – Two Common Buzzards, 2 Black Tailed Godwits and a Caspian Gull at Chelsea/Lambeth Reservoirs.
23rd – A Jack Snipe at Chelsea/Lambeth Reservoirs.
24th – Eight Goldeneye at Walton Reservoirs and 15 Chiffchaffs and a Peregrine at Horton CP the next day.
26th – Five Sand Martins at Chelsea/Lambeth Reservoir. Five passes of roding Woodcock at Prince’s Coverts.
27th – An Avocet at Chelsea/Lambeth Reservoir. Six adult Little Gulls and 2 Goldeneye on Walton Reservoir.
29th – Five Waxwings at Hampton Court Palace formal gardens.
31st – Three Cetti’s Warblers singing at Home Park paddocks area. Two Sand Martins were there and also at Island Barn Reservoir were there were additionally 2 Oystercatchers and a Wheatear.
1st – Two Oystercatchers were at Island Barn Reservoir and continued to be seen in the Walton area throughout the month. The first Swallow and Wheatear were also there.
3rd – A very early Garden Warbler was at R Hogsmill (Berrylands) and Hogsmill Sewage Works still hosted Green Sandpiper, Snipe and 3 Shelduck. Two Barn Owls were over Kingston (Alfred Road) in the late evening.
5th – A Red Kite flew W over Berrylands (Norton Ave) and nearby a Common Buzzard was heard in Regent Rd.
7th – A Cetti’s Warbler was singing in Hogsmill Sewage Works, remaining throughout the month.
8th – A Willow Warbler was singing at Kempton Nature Reserve and on the 11 th a A Red Kite flew over Home Park.
12th – A male Common Redstart was found and photographed at Kempton Nature Reserve and the first House Martins were migrating over Berrylands (Norton Ave).
15th – A summer plumage Black-necked Grebe was at Walton Reservoir (also 18th) and nearby at Chelsea/Lambeth Reservoir there was an adult Mediterranean Gull. A Nightingale was singing in Prince’s Coverts. Common Whitethroats appeared at 4 locations.
17th – A Chiffchaff with a most unusual song and which may well prove to be a rarity was in the scrub at Island Barn Reservoir (to end of month) and both Common Sandpiper and Greenshank were on the reservoir bank.
18th – A Stone Curlew was briefly seen on Molesey Heath.
20th – A Little Egret at Hogsmill Sewage Works and a Wheatear on Walton reservoir bank.
21st – Bar-tailed Godwit, Greenshank, Artic, Common and Black Terns, Reed and Sedge Warblers at Chelsea/Lambeth Reservoir.
23rd – A Greenshank, 2 Mediterranean Gulls (to the end of the month) and Glaucous Gull at Chelsea/Lambeth Reservoir. Arctic Tern and Little Gull at Island Barn Reservoir. Whimbrel at Walton Reservoir.
27th – Red-rumped Swallow (also briefly on 28th)!! and 2 Mediterranean Gulls at Island Barn Reservoir.
28th – Two Common Sandpipers and 6 Common Terns at Island Barn Reservoir. c50 Swifts there but hirundine numbers much reduced from the last few days. Garden Warbler at Molesey Heath.
29th – Garden Warbler at Chessington. Temminck’s Stint and 2 Little Ringed Plovers at Chelsea/Lambeth Reservoir.
30th – Temminck Stint, Turnstone, 5 Artic Terns, 3 Black Terns, Little Ringed Plover, Ringed Plover and Yellow Wagtail at Chelsea/Lambeth Reservoir. A Whimbrel, 3 Artic Terns and a singing Grasshopper Warbler at Island Barn Reservoir.