Sun 10 May 2026 Frogmore Lakes nr St Albans [TL146033] c.6 Swallow (S W)
Frogmore Lakes nr St Albans [TL146033] 1 Lesser Whitethroat (S W)
Frogmore Lakes nr St Albans [TL146033] 3+ Garden Warbler (S W)
Frogmore Lakes nr St Albans [TL146033] 1 Osprey, Circled over the paddocks before heading NW at 08:16 (S W)
Frogmore Lakes nr St Albans [TL146033] 35+ Whitethroat (S W)
Harpenden, 2 Swift, Flying near Crabtree school (Robin Hilton)
St Paul's Walden [TL201224] 4 Yellowhammer, Walking down Norton Street and then around adjacent fields (with farmer’s permission) heard a total of 4 singing males. (Lucy Alexander)
Tewin [TL278146] 1 Yellowhammer (Aaron Clements-Partridge)
Waterend nr Wheathampstead, 1 Reed Warbler (Robin Hilton)
Waterend nr Wheathampstead, 1 Sedge Warbler (Robin Hilton)
Waterend nr Wheathampstead, 1 Garden Warbler (Robin Hilton)
Waterend nr Wheathampstead, 1 Cetti's Warbler (Robin Hilton)
Sat 9 May 2026 Coopers Green GPs - Stanborough GP [TL207103] 2 Mandarin, A Pair. (Steven Pearce)
Coopers Green GPs - Stanborough GP [TL203110] 1 Wheatear, Female in field at farm end of track (the long staying male at the other end not seen). (Steven Pearce)
Frogmore Lakes nr St Albans [TL146032] 2 Lesser Whitethroat (S W)
Frogmore Lakes nr St Albans [TL146032] 1 Garden Warbler (S W)
Frogmore Lakes nr St Albans [TL146032] 1 Cetti's Warbler (S W)
Harpenden, 1 Cuckoo, Heard at 5:54am near Crabtree School (Robin Hilton)
Kinsbourne Green nr Harpenden [TL112160] 1 Blackcap (Russ Harvey)
Langley nr Stevenage [TL199234] 1 Garden Warbler (Lucy Alexander)
Langley nr Stevenage [TL203230] 1 Yellowhammer (Lucy Alexander )
Langley nr Stevenage [TL199234] 1 Blackcap, In a scrubby area Farmer has left purposefully to rewild. (Lucy Alexander)
Maple Cross [TQ029920] 1 Garden Warbler (Chris Bessant)
Pynesfield North Lake nr Maple Cross [TQ031914] 1 Whitethroat (Chris Bessant)
Pynesfield North Lake nr Maple Cross [TQ036911] 1 Cetti's Warbler (Chris Bessant)
Pynesfield South Lake nr Maple Cross [TQ038911] 1 Garden Warbler (Chris Bessant)
Stevenage - Broadwater [TL256254] 1 Blackcap (Andy Day)
Wheathampstead [TL190142] 1 Cuckoo, Heard only from 6am (Jacqui Ansell)
Wheathampstead [TL190142] 2 Cetti's Warbler (Jacqui Ansell)
Wheathampstead [TL190142] 2+ Reed Warbler (Jacqui Ansell)
Wheathampstead [TL190142] 2+ Sedge Warbler (Jacqui Ansell)
Wilbury Hill nr Letchworth [TL201324] 1 Cuckoo, heard briefly 10.00 in set-aside SE of Icknield Way / Stotfold Rd junction (James Walsh)
Fri 8 May 2026 Batford [TL146150] 1 Cetti's Warbler, Heard in reserve (Clifford Smout)
Braughing Meads, 2 Mandarin, A pair on the bank of R Quin near the footbridge on Meads (Steve Hughes)
Heartwood Forest - Arboretum [TL175119] 1 Willow Warbler (Jamie Brown)
Heartwood Forest - Arboretum [TL175119] 3 Meadow Pipit (Jamie Brown)
Heartwood Forest - Arboretum [TL175119] 2 Garden Warbler (Jamie Brown)
Heartwood Forest - Arboretum [TL175119] 2 Yellowhammer (Jamie Brown)
Heartwood Forest - Arboretum [TL175119] 23 Linnet (Jamie Brown)
Heartwood Forest - Arboretum [TL175119] 5 Whitethroat (Jamie Brown)
Hertford - Hartham, c.2+ Kingfisher, Active between Hartham weir and brown arch (Matt Holmes)
Oxhey, 2 Blackcap, Paddock Road allotments. (Geoff Young)
Oxhey, 1 Chiffchaff, Paddock Road allotments. (Geoff Young)
Oxhey, 1 Whitethroat, in song flight, Paddock Road allotments. (Geoff Young)
Redbournbury [TL122102] 2 Cetti's Warbler (Alan Gardiner)
Redbournbury [TL119107] 2 Grey Wagtail (Alan Gardiner)
Redbournbury [TL119107] 4 Linnet (Alan Gardiner)
Redbournbury [TL122102] 1+ Sedge Warbler (Alan Gardiner)
Shafford Farm nr St Albans [TL123097] 1 Sedge Warbler (Alan Gardiner)
Shafford Farm nr St Albans [TL123097] 2 Cetti's Warbler (Alan Gardiner)
The Withey Beds nr Rickmansworth [TQ078940] 1 Garden Warbler, Singing (Anna Marett)
The Withey Beds nr Rickmansworth [TQ078940] 1 Reed Warbler, Singing (Anna Marett)
The Withey Beds nr Rickmansworth [TQ078940] 1 Whitethroat, Singing (Anna Marett)
Tring Reservoirs - Wilstone Res, 5+ Lesser Whitethroat, minimum singing around site (Ian Williams)
Tring Reservoirs - Wilstone Res, 6 Common Sandpiper, flew from north corner early morning (Ian Williams)
Whitwell [TL184212] 4 Swallow, At stables at Water Hall Farm (Aaron Clements-Partridge)
Whitwell [TL188216] 2 Raven (Aaron Clements-Partridge)
Whitwell [TL191214] 1 Yellowhammer (Aaron Clements-Partridge)
Woodoaks Farm nr Maple Cross, 1 Lesser Whitethroat, Singing in old orchard (Stephen Middleton)
Woodoaks Farm nr Maple Cross, 1 Stonechat (Stephen Middleton)
Woodoaks Farm nr Maple Cross, 1 Blackcap (Stephen Middleton)
Woodoaks Farm nr Maple Cross, 5 Whitethroat (Stephen Middleton)
Thu 7 May 2026 Amwell NR - Tumbling Bay Lake, 1 Nightingale, Still present & singing sporadically. (Chris Holtby)
Batford, 1 Blackcap (Francis Dowley)
Batford, 2 Chiffchaff (Francis Dowley)
Batford, 1 Cetti's Warbler (Francis Dowley)
Batford, 5+ Ring-necked Parakeet (Francis Dowley)
Bishop's Stortford [TL485218] 4 Swift, flying over Elm Road and Northgate End. (Richard Melarange)
Borehamwood - Aberford Park, 4 Egyptian Goose, 4 on grass between lake and Brook Road (Rex Dunwoody)
Croxley Common Moor, 4 Blackcap (Steve Carter )
Croxley Common Moor, 2 Garden Warbler (Steve Carter )
Croxley Common Moor, 3 Whitethroat (Steve Carter )
Croxley Common Moor, 2 Chiffchaff (Steve Carter )
Croxley Common Moor, 4 Reed Warbler (Steve Carter )
Croxley Common Moor, 2 Cetti's Warbler (Steve Carter )
Croxley Common Moor, 1 Cuckoo, Heard (Steve Carter )
Croxley Common Moor, 5 Sedge Warbler (Steve Carter )
Kinsbourne Green pit [TL102161] 4+ Swallow (Clifford Smout)
Kinsbourne Green pit [TL102161] 2 Oystercatcher (Clifford Smout)
Kinsbourne Green pit [TL102161] 5+ Linnet (Clifford Smout)
Kinsbourne Green pit [TL102161] 1+ House Martin (Clifford Smout)
Letty Green [TL291113] 2 Swallow (Aaron Clements-Partridge)
Letty Green [TL291113] 1 Cuckoo, Heard (Aaron Clements-Partridge)
Letty Green [TL291113] 1 Yellowhammer (Aaron Clements-Partridge)
Stevenage - Fairlands Valley Park - S of Six HIlls Way, 1 Cuckoo, Heard calling briefly west of the dam (Darrel Bryant)
Verulamium Park [TL141067] 1 Cetti's Warbler, Still present heard singing near Abbey Mill. (Rob Souter )
Weston, 11 Cattle Egret (Andrew coates)
Wed 6 May 2026 Amwell GP/NR (exact water not specified) [TL373131] 1 Nightingale, Singing, calling and showing intermittently at 12.45hrs (Graham Higgins)
Cassiobury Park, c.10 Blackcap (Pinner RSPB Group)
Cassiobury Park, 3 Reed Warbler (Pinner RSPB Group)
Cassiobury Park, c.2 Cetti's Warbler (Pinner RSPB Group)
Cassiobury Park, 1 Common Tern (Pinner RSPB Group)
Cassiobury Park, 1+ Sedge Warbler (Pinner RSPB Group)
Cassiobury Park, 2 Whitethroat (Pinner RSPB Group)
Cassiobury Park, 1 Little Egret (Pinner RSPB Group)
Cassiobury Park, 1 Egyptian Goose (Pinner RSPB Group)
Cassiobury Park, 10 Chiffchaff (Pinner RSPB Group)
Cassiobury Park, 1 Swift (Pinner RSPB Group)
Cassiobury Park, 1 Grey Wagtail (Pinner RSPB Group)
Cassiobury Park, 2 Mandarin (Pinner RSPB Group)
Coopers Green Lane nr St Albans [TL207111] 1 Oystercatcher (Simon Errington)
Coopers Green Lane nr St Albans [TL207111] 1 Little Ringed Plover (Simon Errington)
Coopers Green Lane nr St Albans [TL203110] 1 Whitethroat (Simon Errington)
Coopers Green Lane nr St Albans [TL204110] 6 Linnet (Simon Errington)
Coopers Green Lane nr St Albans [TL205109] 2 Yellow Wagtail (Simon Errington)
East Hyde, 2 Egyptian Goose, By pumping station (Russell Harvey)
East Hyde [TL130170] 1 Whitethroat (Russell Harvey)
Frogmore GP nr Stevenage [TL285206] 3 Mandarin, Flying over (Alan Ford)
Hatfield Garden Village [TL214100] 1 Lesser Whitethroat (Simon Errington)
Panshanger Park [TL303123] 2 Sedge Warbler (Dean Ballard)
Panshanger Park [TL301123] 3 Common Tern, Over Osprey Lake (Dean Ballard)
Panshanger Park [TL302123] 1 Garden Warbler (Dean Ballard)
Panshanger Park [TL300122] 1 Cuckoo (Dean Ballard)
Panshanger Park [TL300123] 1 Common Sandpiper, On the island (Dean Ballard)
Preston [TL172249] 6 Lapwing, Scattered throughout fallow field, possibly paired up (Callum Peel)
Preston [TL173249] 1 Yellowhammer (Callum Peel)
Preston [TL169252] 15+ Swallow, Flying over arable fields near Austage End (Callum Peel)
Thorley nr Bishop's Stortford [TL482185] 1 Common Sandpiper, One at the Reservoir. (Laurence Drummond)
Thorley nr Bishop's Stortford [TL482185] 1 Cuckoo, Male flying along the canopy at Thorley wood, occasionally stopping to call. (Laurence Drummond)
Thorley nr Bishop's Stortford [TL482185] 2 House Martin, 2 at the reservoir in mixed hirundine flock. (Laurence Drummond)
Tring Reservoirs - Wilstone Res, c.2 Yellow Wagtail, Near overflow
Tring Reservoirs - Wilstone Res, 1+ Hobby
Tring Reservoirs - Wilstone Res, 3+ Chiffchaff
Tring Reservoirs - Wilstone Res, 10+ House Martin
Tring Reservoirs - Wilstone Res, 100+ Swift
Tring Reservoirs - Wilstone Res, 10+ Common Tern
Tring Reservoirs - Wilstone Res, 8+ Red Kite
Tring Reservoirs - Wilstone Res, 1 Grey Wagtail
Tring Reservoirs - Wilstone Res, c.3 Blackcap
Tring Reservoirs - Wilstone Res, 1 Cetti's Warbler, Calling near hide
Tring Reservoirs - Wilstone Res, 25+ Swallow
Tyttenhanger GPs (exact GP not specified), 1 Cuckoo, calling (Alan Gardiner)
Tyttenhanger GPs - fishing lake [TL191053] 2 Oystercatcher (Alan Gardiner)
Tyttenhanger GPs - fishing lake [TL191053] 2 Common Tern (Alan Gardiner)
Tyttenhanger GPs - main GP [TL196051] 1 Cetti's Warbler (Alan Gardiner)
Tyttenhanger GPs - Tyttenhanger Farm [TL198051] 1 Lesser Whitethroat, singing (Alan Gardiner)
Tyttenhanger GPs - Willows Farm [TL191044] 1 Raven (Alan Gardiner)
Tyttenhanger GPs - Willows Farm Lake [TL186045] 1 Yellow Wagtail, Male calling on fence post at far edge of cattle field by Willows Farm Lake. (Steven Pearce)
Tue 5 May 2026 Coopers Green GPs - Stanborough GP [TL201112] 1 Lesser Whitethroat, Singing in Symondshyde Farm hedgerow (Steven Pearce)
Coopers Green GPs - Stanborough GP [TL210108] 1 Wheatear, Male still present. (Steven Pearce)
Coopers Green GPs - Stanborough GP [TL211109] 1 Sedge Warbler, Lagoon rough area. (Steven Pearce)
Coopers Green GPs - Stanborough GP [TL209106] 3 Little Ringed Plover (Steven Pearce)
Coopers Green GPs - Stanborough GP [TL210108] 9 Yellow Wagtail, 8 males (at least 6 on posts, calling) and a female along or near main track. (Steven Pearce)
Kinsbourne Green pit [TL102161] 1 Lapwing (Clifford Smout)
Kinsbourne Green pit [TL102161] 4 Swallow (Clifford Smout)
Kinsbourne Green pit [TL102161] 2 Oystercatcher, Pair (Clifford Smout)
Maple Lodge NR (members only), 1 Sedge Warbler (Steve Carter )
Maple Lodge NR (members only), 1 Cetti's Warbler (Steve Carter )
Maple Lodge NR (members only), 2 Sand Martin (Steve Carter )
Maple Lodge NR (members only), 2 House Martin (Steve Carter )
Maple Lodge NR (members only), 2 Egyptian Goose (Steve Carter )
Maple Lodge NR (members only), 3 Swallow (Steve Carter )
Maple Lodge NR (members only), 6 Reed Warbler (Steve Carter )
Maple Lodge NR (members only), 2 Common Tern (Steve Carter )
Maple Lodge NR (members only), 3 Blackcap (Steve Carter )
Maple Lodge NR (members only), 2 Garden Warbler (Steve Carter )
Maple Lodge NR (members only), 2 Chiffchaff (Steve Carter )
Northaw Great Wood, 1 Cuckoo, Calling infrequently this afternoon. (Mark Smith)
Tring Reservoirs - Wilstone Res, 1 Great White Egret (Steve Rodwell)
Tring Reservoirs - Wilstone Res, 2 Mediterranean Gull, Second-summer (Steve Rodwell)
Watford [TQ096989] 1 Firecrest, Singing bird at Ridge Lane end of Orchard Park at 8.30am (Ian Bennell)
Watford [TQ096986] 2 Firecrest, at Cheslyn Gardens (Nick Harris)
Watford [TQ096986] 1 Chiffchaff (Nick Harris)
Watton at Stone, 1 Nightingale (Ray Hooper)
Welwyn [TL225158] 1 Hobby, Hunting low over hospital boundary (Alex Trollope )
Welwyn [TL225158] 3 Swift (Alex Trollope )
Woodoaks Farm nr Maple Cross, 3 Red Kite, Calling (Steve Carter )
Woodoaks Farm nr Maple Cross, 1 Blackcap (Steve Carter )
Woodoaks Farm nr Maple Cross, 2 Whitethroat (Steve Carter )
Woodoaks Farm nr Maple Cross, 1 Lesser Whitethroat, Singing (Steve Carter )
Woodoaks Farm nr Maple Cross, 2 Linnet, Pair (Steve Carter )
Woodoaks Farm nr Maple Cross, 1 Chiffchaff (Steve Carter )
Mon 4 May 2026 Batford [TL148167] c.1 Lesser Whitethroat, heard in hedge at top of hill from entrance from Turners close, (Darin Stanley)
Batford [TL152150] 1 Lesser Whitethroat, heard and seen in hedgerow north of weedy/ Scrubby field by KW School. (Darin Stanley)
Berkhamsted, 1 Hobby, Hunting low over houses c1500h (Andrew Bailey)
Cadwell nr Ickleford, 1 Cuckoo, singing near Lower Green Farm (James Walsh)
Cadwell nr Ickleford, 1 Whinchat, fem S of Lavender fields, on Icknield Way 400m E of railway footbridge (James Walsh)
Coopers Green GPs - Stanborough GP [TL207102] 2 House Martin (Steven Pearce)
Coopers Green GPs - Stanborough GP [TL207102] 1 Sedge Warbler, One singing along Coopers Green Lane near Hatfield Business Park turn-off (by new workings) (Steven Pearce)
Coopers Green GPs - Stanborough GP [TL207102] 2 Mandarin, A pair flew from a tree. (Steven Pearce)
Coopers Green GPs - Sutton Farm GP [TL196103] 1 Barn Owl, Hunting at first light (Rupert Evershed)
Coopers Green GPs - Sutton Farm GP [TL196103] 1 Willow Warbler (Rupert Evershed)
Cooters End Lane nr Harpenden [TL126156] 1 Whitethroat, Seen (Clifford Smout)
Cooters End Lane nr Harpenden [TL129162] 1 Linnet (Clifford Smout)
East Hyde [TL128171] 1 Sedge Warbler, Silent (Clifford Smout)
East Hyde [TL130170] 2 Whitethroat, Seen (Clifford Smout)
East Hyde [TL128171] 3+ Little Egret, Three in ditch commuting up to mill pool and probably a different bird up towards Harpenden (Clifford Smout)
Flamstead village [TL064130] 1+ Willow Warbler (Andrew Harris)
Hammonds Farm nr Sandridge [TL183112] 1 Quail, Calling by gate at 4.20am (Rupert Evershed)
Hatfield [TL220080] 4 Swift, First record of the year (Brendon Fagan)
Hatfield Garden Village [TL219094] 1 Lesser Whitethroat, In overgrown area near shops, where singing last week. (Steven Pearce)
Hertford - Bengeo [TL317133] 1 Cuckoo (Simon Knott)
Hitchin [TL187310] 2 Reed Warbler, Burymead Springs nature reserve (Callum Peel)
Ickleford [TL187314] 1 Willow Warbler, Singing in scrub near railway line between Hitchin industrial estate and Ickleford. Near Burymead Springs (Callum Peel)
Ickleford [TL187314] 1 Lesser Whitethroat, Scrub near railway line between Hitchin industrial area and Ickleford (Callum Peel)
Ickleford [TL185323] 3 Swift, Over the village. My first of the year (Callum Peel)
Ickleford [TL186319] 1 Lesser Whitethroat, Near River Hiz north of Icknield Way (Callum Peel)
Ickleford Common [TL182334] 1 Yellowhammer, Fields to west of the common towards Holwell (Callum Peel)
Ickleford Common [TL186329] 2 Reed Warbler, In reeds along River Hiz on county border. One singing (Callum Peel)
Ickleford Common [TL182334] 1 Corn Bunting, Fields to west of the common towards Holwell (Callum Peel)
Kinsbourne Green pit [TL102161] 3 Linnet (David Lyons)
Kinsbourne Green pit [TL102161] 2 Oystercatcher (David Lyons)
Kinsbourne Green pit [TL102161] 3+ Yellow Wagtail, Several sightings of 1 or 2 birds. Hard to estimate total on site and mobile and spread out. I would guess 6 to 10. (David Lyons)
Kinsbourne Green pit [TL102161] 1 Lapwing (David Lyons)
Lemsford [TL219120] 10 House Martin (Aaron Clements-Partridge)
Lemsford [TL219120] 2 Swift (Aaron Clements-Partridge)
Maple Cross [TQ025924] 1 House Martin (Chris Bessant)
Maple Cross [TQ025924] 1 Lesser Whitethroat (Chris Bessant)
Panshanger Park [TL292125] 4 Raven, Possibly 2 pairs (Tracey Burrows)
Panshanger Park [TL292125] 3 Hobby, Over Riverside Lake (Tracey Burrows)
Stevenage [TL246243] 3 Swift, over Bedwell Crescent (Andy Day)
Symondshyde Great Wood - exact location not specified [TL196106] 4 Crossbill (Rupert Evershed)
Thorley nr Bishop's Stortford [TL482182] 1 Common Sandpiper, still at Thorley Reservoir this morning (Mary Young)
Thorley nr Bishop's Stortford [TL482182] 1+ Yellowhammer, at least one heard singing at Thorley Reservoir (Mary Young)
Thorley nr Bishop's Stortford [TL482182] 1+ House Martin, in reasonable sized group of mixed hirundines at Thorley Reservoir, including Sand Martins and Swallows (Mary Young)
Thorley nr Bishop's Stortford [TL482182] 3 Little Ringed Plover, still at Thorley Reservoir this morning (Mary Young)
Thorley nr Bishop's Stortford [TL482182] 1 Dunlin, in breeding plumage, at Thorley Reservoir this morning (Mary Young)
Tring Reservoirs - Wilstone Res, 1 Cattle Egret, with little egret early morning briefly before flying east (Ian Williams)
Tring Reservoirs - Wilstone Res, 2 Hobby (Ian Williams)
Tring Reservoirs - Wilstone Res, 1 Cuckoo (Ian Williams)
Tring Reservoirs - Wilstone Res, 4 Little Egret (Ian Williams)
Tring Reservoirs - Wilstone Res, 1 Common Sandpiper (Ian Williams)
Tring Reservoirs - Wilstone Res, 11+ Common Tern (Nick Harris)
Tring Reservoirs - Wilstone Res, 1 Yellowhammer, heard singing from hedgerow in field adjacent to the reservoir (Nick Harris)
Tring Reservoirs - Wilstone Res, 1 Oystercatcher, in front of hide (Nick Harris)
Tring Reservoirs - Wilstone Res, 1 Water Rail, heard calling from reedbed (Nick Harris)
Tring Reservoirs - Wilstone Res, 3 Hobby, hunting over the reservoir early evening (Nick Harris)
Tring Reservoirs - Wilstone Res, 1 Mandarin (Nick Harris)
Tyttenhanger GPs (exact GP not specified) [TL190050] 3 Cetti's Warbler, singing around the site (Roger Payne)
Tyttenhanger GPs (exact GP not specified) [TL190050] 2 Lesser Whitethroat, in hedge by upper viewpoint (Roger Payne)
Tyttenhanger GPs (exact GP not specified) [TL190050] 2 Cuckoo, one calling from top of dead tree in ex-Tree-Sparrow hedge, another more distant (Roger Payne)
Tyttenhanger GPs (exact GP not specified) [TL190050] 3 Reed Warbler, by the causeway (Roger Payne)
Tyttenhanger GPs - Coursers Road GPs [TL200042] 1 Ringed Plover (Rupert Evershed)
Tyttenhanger GPs - Coursers Road GPs [TL200042] 1 Greenshank (Rupert Evershed)
Watton at Stone, 1 Nightingale, Heard singing Fri and sat nights. Still calling today c midday. Not seen. Church Lane. Just past railway station on the left. (Matt holmes)
Sun 3 May 2026 Amwell GP/NR (exact water not specified) [TL373131] 1 Nightingale (Andy Bartlett)
Amwell GP/NR (exact water not specified) [TL373131] 1 Cuckoo (Andy Bartlett)
Amwell NR - Hollycross Lake [TL377131] 2 Hobby (Andy Bartlett)
Cassiobury Park [TQ102966] 1 Firecrest, at Rickmansworth Road entrance. Briefly moved to a tree at the junction of Cassiobury Park Avenue and Rickmansworth Road before returning to original location. (C Luckhurst)
Coopers Green GPs - Stanborough GP [TL209106] 1+ Little Ringed Plover (Alan Gardiner)
Coopers Green GPs - Stanborough GP [TL205111] 3+ Yellow Wagtail (Alan Gardiner)
Coopers Green GPs - Stanborough GP [TL200111] 1 Lesser Whitethroat (Alan Gardiner)
Coopers Green GPs - Stanborough GP [TL202108] 2 Grey Partridge (Alan Gardiner)
Coopers Green GPs - Stanborough GP [TL207111] 1 Swallow, An "Egyptian" Swallow of race Savignii with all dark rust-coloured underparts. Came through with small passage of Swallows west and sat on fence wires by middle pool about 4.30pm (Rupert Evershed)
East Hyde [TL128171] 2 Sedge Warbler (David Lyons)
East Hyde [TL128171] 1 Little Egret (David Lyons)
Great Wymondley [TL208285] 1 Yellowhammer (Callum Peel)
Ickleford [TL183317] 2 Swift (R Ambrose )
Kinsbourne Green nr Harpenden [TL107152] 1 Whitethroat (Clifford Smout)
Kinsbourne Green pit [TL102161] 3 Swallow (Clifford Smout)
Kinsbourne Green pit [TL102161] 2 Oystercatcher, Pair still (Clifford Smout)
Maple Lodge NR (members only), 1 Cuckoo (Steve Carter )
Maple Lodge NR (members only), 2 Reed Warbler (Steve Carter )
Maple Lodge NR (members only), 3 Blackcap (Steve Carter )
Maple Lodge NR (members only), 1 Garden Warbler (Steve Carter )
Maple Lodge NR (members only), 2 Chiffchaff (Steve Carter )
Maple Lodge NR (members only), 2 Cetti's Warbler (Steve Carter )
Maple Lodge NR (members only), 1 Little Egret (Steve Carter )
Panshanger Park [TL286123] 6+ Whitethroat (Dean Ballard)
Panshanger Park [TL289125] 2 Cuckoo (Dean Ballard)
Panshanger Park [TL286123] 6 Egyptian Goose, 4 young (Dean Ballard)
Panshanger Park [TL293123] 2 Reed Warbler (Dean Ballard)
Panshanger Park [TL286123] c.8 Lapwing (Dean Ballard)
Purwell Ninesprings nr Hitchin [TL206293] 1 Reed Warbler, Singing in reedbed (Callum Peel)
Rickmansworth [TQ068943] 2 Reed Warbler (Anna Marett)
Rickmansworth [TQ068943] 1 Cuckoo, Male calling (Anna Marett)
Standon [TL395221] 1 Swallow, flying around barn in Paper Mill Lane. (Richard Melarange)
Stevenage [TL256254] 2 Swift, over Drakes Drive (Andy Day)
Tring, 1 Cuckoo, Dundale Wood (Steve Rodwell)
Tring Reservoirs - Wilstone Res [SP905130] 5 Hobby
Tring Reservoirs - Wilstone Res [SP905130] 1 Common Sandpiper
Tring Reservoirs - Wilstone Res [SP905130] 2 Cuckoo
Tring Reservoirs - Wilstone Res [SP905130] 1 Oystercatcher
Tring Reservoirs - Wilstone Res, 2 Cuckoo, both in trees behind hide at one stage - female flew in to join male (Ian Williams)
Tring Reservoirs - Wilstone Res, 1 Greenshank, flew through late mornng (Ian Williams)
Tring Reservoirs - Wilstone Res, 6 Common Sandpiper, between car park and overflow early morning (Ian Williams)
Tring Reservoirs - Wilstone Res, 6 Hobby, late morning (Ian Williams)
Tring Reservoirs - Wilstone Res, 30+ Swift, mid morning before cloud lifted (Ian Williams)
Tyttenhanger GPs - Coursers Road GPs [TL201041] 2 Oystercatcher, Flew in from South at 8am stayed for about 10 minutes before heading NE then returned about 20 minutes and stayed for another 30 minutes before heading NE again (Andrew Steele)
Tyttenhanger GPs - Coursers Road GPs [TL201041] 4 Little Ringed Plover (Andrew Steele)
Tyttenhanger GPs - Coursers Road GPs [TL200042] 3 Little Ringed Plover (Steven Pearce)
Tyttenhanger GPs - Coursers Road GPs [TL200042] 4 Ringed Plover (Steven Pearce)
Tyttenhanger GPs - fishing lake [TL191052] 1 Common Tern (Steven Pearce)
Tyttenhanger GPs - main GP [TL195051] 1+ Common Tern (Andrew Steele)
Tyttenhanger GPs - main GP [TL197053] 2 Yellow Wagtail, Collecting nesting material from field behind viewpoint (Andrew Steele)
Tyttenhanger GPs - main GP [TL196051] 2 Lesser Whitethroat (Andrew Steele)
Tyttenhanger GPs - main GP [TL196051] c.3 Garden Warbler (Andrew Steele)
Tyttenhanger GPs - main GP [TL196052] 2 Cetti's Warbler (Andrew Steele)
Tyttenhanger GPs - main GP [TL196050] 2 Egyptian Goose (Andrew Steele)
Tyttenhanger GPs - main GP [TL195052] 1 Little Egret (Steven Pearce)
Ware [TL369150] 10 Swift, First screaming party of the year above Trinity Road. (Ian Edwards )
Waterford Heath GP [TL314154] 1 Cuckoo, Singing Male from silver birch tree (David Schwartz)
Sat 2 May 2026 Amwell NR - Great Hardmead Lake, 1 Common Snipe (Jane Free )
Amwell NR - Great Hardmead Lake, 5 Common Sandpiper (Jane Free )
Amwell NR - Great Hardmead Lake, 1 Cuckoo (Jane Free )
Amwell NR - Great Hardmead Lake, 1 Garden Warbler (Jane Free )
Amwell NR - Great Hardmead Lake, 4 Little Ringed Plover (Jane Free )
Amwell NR - Great Hardmead Lake, 5 Common Tern (Jane Free )
Amwell NR - Great Hardmead Lake, 2 Whitethroat (Jane Free )
Ashbrook nr Hitchin [TL203281] 1 Linnet, Male in scrub along Ash Brook (Callum Peel)
Ashbrook nr Hitchin [TL203281] 1 Whitethroat, Singing and seen carrying nest material in scrub along Ash Brook (Callum Peel)
Cheshunt Park [TL351040] 2 Lesser Whitethroat (David Pausey )
Cheshunt Park [TL351040] 6 Chiffchaff (David Pausey )
Cheshunt Park [TL351040] 1 Willow Warbler (David Pausey )
Cheshunt Park [TL351040] 2 Grey Wagtail, Male and female (David Pausey )
Cheshunt Park [TL351040] 7 Ring-necked Parakeet (David Pausey )
Cheshunt Park [TL351040] 9+ Blackcap, All males (David Pausey )
Cheshunt Park [TL351040] 2 House Martin (David Pausey )
Cheshunt Park [TL351040] 16+ Whitethroat (David Pausey )
Coopers Green GPs - Stanborough GP [TL215110] 4+ Little Ringed Plover, 2 pairs (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL215110] 8+ Yellow Wagtail, At least 4 pairs around site (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL215110] 1 Cuckoo (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL215110] 1 Common Snipe, On middle pool (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL215110] 1 Reed Warbler (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL215110] 3+ Sedge Warbler (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL215110] 1 Wheatear, Male still (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL208111] 2 Mandarin, A pair. (Steven Pearce)
East Hyde, 1 Chiffchaff, heard only (Francis and Janet Dowley)
East Hyde, 8+ House Martin, around the farm buildings (Francis and Janet Dowley)
East Hyde, 1 Whitethroat, singing near the bridge (Francis and Janet Dowley)
East Hyde, 1 Blackcap, heard only (Francis and Janet Dowley)
East Hyde, 2 Sedge Warbler, singing near the bridge (Francis and Janet Dowley)
East Hyde, 1 Little Egret (Francis and Janet Dowley)
Ellenbrook Fields [TL197087] 1 Cuckoo (Alan Gardiner)
Ellenbrook Fields [TL197087] 3 Lesser Whitethroat (Alan Gardiner)
Harpenden [TL154123] 2 Yellowhammer (Jamie Brown)
Harpenden [TL154123] 2 Whitethroat (Jamie Brown)
Harpenden [TL154123] 2 Linnet (Jamie Brown)
Harpenden [TL154123] 1 Chiffchaff (Jamie Brown)
Hatfield [TL217082] 2+ Swift, Screaming birds over garden (Andrew Steele)
Hemel Hempstead, 2 Swift, Woodhall farm (David Denham )
Hitchin [TL186295] 1 Little Egret, River Hiz near Sainsbury's (Callum Peel)
Hitchin [TL185294] 1 Grey Wagtail, Singing on roof beside Sainsbury's car park (Callum Peel)
Ickleford [TL183325] 5 Blackcap, Recorded during BBS in Herts section of TL1832 grid square (Callum Peel)
Ickleford [TL183325] 3 Chiffchaff, Recorded during BBS in Herts section of TL1832 grid square (Callum Peel)
Ickleford [TL182328] 1 Yellowhammer, Recorded during BBS in Herts section of TL1832 grid square (Callum Peel)
Ickleford [TL183327] 8 Whitethroat, Recorded during BBS in Herts section of TL1832 grid square (Callum Peel)
Ickleford [TL182326] 11 Swallow, Recorded during BBS in TL1832 grid square (Callum Peel)
Ickleford [TL182328] 1 Lesser Whitethroat, Recorded during BBS in TL1832 grid square (Callum Peel)
Ickleford Common [TL187326] 1 Cuckoo, Recorded during BBS. Singing around Lower Green Farm and south of Arlesey Road (Callum Peel)
King's Meads nr Hertford [TL339136] 2 Swift (Andrew Steele)
King's Meads nr Hertford [TL339136] 1 Yellow Wagtail (Andrew Steele)
King's Meads nr Hertford [TL339136] 23 Sand Martin (Andrew Steele)
King's Meads nr Hertford [TL339136] 4 Wood Sandpiper (Andrew Steele)
King's Meads nr Hertford [TL339136] 2 Little Ringed Plover, Seen on the flood. Observed mating. (Dickie Greasby)
King's Meads nr Hertford [TL340135] 1 Cuckoo (James Walsh)
King's Meads nr Hertford [TL340135] 3 Wood Sandpiper (Matt Allen)
King's Meads nr Hertford [TL340135] 2 Lapwing (Matt Allen)
King's Meads nr Hertford [TL340135] 1 Great White Egret, Flying over (Matt Allen)
Roydon (Herts/Essex) [TL410110] 1 Cuckoo, singing in Briggens area (James Walsh)
The Withey Beds nr Rickmansworth [TQ078940] 2 Common Snipe (Anna Marett)
The Withey Beds nr Rickmansworth [TQ078940] 1 Whitethroat (Anna Marett)
The Withey Beds nr Rickmansworth [TQ078940] 1 Reed Warbler, Singing (Anna Marett)
Tring Reservoirs - Marsworth Res [SP922137] 10+ House Martin, At least 10 flying around and in and out of the eaves of the lock cottage. Marsworth Lock no. 44 (J.Brady)
Tring Reservoirs - Marsworth Res [SP922137] 5+ Swallow, Hunting over the Grand Union canal. (J.Brady)
Tring Reservoirs - Marsworth Res [SP922137] 10+ Reed Warbler, The reeds around Marsworth were full of Reed warblers, sedge warblers and Reed bunting this morning. (J.Brady)
Tring Reservoirs - Marsworth Res [SP922137] 1 Osprey, Flew high over lock no. 44 while I was watching a group of house martins. (J.Brady)
Tring Reservoirs - Marsworth Res [SP922137] 10+ Sedge Warbler (J.Brady)
Tring Reservoirs - Startop's End Res, 1 Lesser Scaup, drake still by road Tringford corner with 6 tufties (Ian Williams)
Tring Reservoirs - Wilstone Res [SP908133] 1 Cuckoo
Tring Reservoirs - Wilstone Res [SP908133] 2+ Reed Warbler
Tring Reservoirs - Wilstone Res [SP908133] 4 Common Tern
Tring Reservoirs - Wilstone Res [SP908133] 1 Little Egret
Tring Reservoirs - Wilstone Res [SP908133] 1 Hobby
Tyttenhanger GPs - Coursers Road GPs [TL201042] 1 Common Sandpiper, Calling from workings (Rupert Evershed)
Tyttenhanger GPs - Coursers Road GPs [TL201042] 2 Little Ringed Plover (Rupert Evershed)
Tyttenhanger GPs - Coursers Road GPs [TL200042] 1 Greenshank, Arrived with rain (Rupert Evershed)
Tyttenhanger GPs - Coursers Road GPs [TL200042] 3 Oystercatcher, Arrived with rain (Rupert Evershed)
Tyttenhanger GPs - Coursers Road GPs [TL201042] 1 Corn Bunting, Flew towards Willows Farm (Rupert Evershed)
Tyttenhanger GPs - main GP [TL195052] 1 Hobby (Alan Gardiner)
Fri 1 May 2026 Amwell NR - Great Hardmead Lake [TL377128] 4 Cattle Egret, in trees on Island from viewpoint (Andy Bartlett)
Amwell NR - Great Hardmead Lake, 1 Common Sandpiper (Jane Free)
Amwell NR - Great Hardmead Lake, 1 Wood Sandpiper (Jane Free)
Apsley [TL059056] 2 Swift, First seen here this year (Graham Higgins)
Briggens nr Roydon [TL410110] 1 Hoopoe, on lawn at Briggens (Andy Day)
Coopers Green GPs - Stanborough GP [TL215110] 1 Stonechat, Male (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL215110] 10+ Swallow, Over Symondshyde Farm (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL215110] 1 Sedge Warbler (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL215110] 1 Wheatear, Male (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL215110] 4+ Little Ringed Plover, 2 pairs (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL215110] 6+ Yellow Wagtail, In fields along track (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL215110] 1 Sand Martin (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL215110] 2 House Martin, Collecting mud from middle pool (Rupert Evershed)
Coopers Green GPs - Stanborough GP [TL215110] 2 Swift (Rupert Evershed)
East End Green [TL299107] c.12 Reed Warbler (Andrew Steele)
East End Green [TL299107] 1 Yellow Wagtail (Andrew Steele)
East End Green [TL299107] 1 Cuckoo (Andrew Steele)
East End Green [TL299107] 4 Sand Martin (Andrew Steele)
East End Green [TL299107] 2 Lesser Whitethroat (Andrew Steele)
East End Green [TL299107] 3 Garden Warbler (Andrew Steele)
East End Green [TL299107] c.7 Whitethroat (Andrew Steele)
East Hyde, 2+ Sedge Warbler, R/H bridge side near gulley (Russell Harvey)
East Hyde, 1 Common Snipe, In the gulley r/h side of bridge (Russell Harvey)
King's Meads nr Hertford [TL340135] 2 Stonechat, m & f (Andy Day)
King's Meads nr Hertford [TL340135] 2 Lesser Whitethroat, Singing (Andy Day)
King's Meads nr Hertford [TL340135] 6 Wood Sandpiper, still on flood (Andy Day)
King's Meads nr Hertford [TL340135] 1 Cuckoo, Park mead (Andy Day)
King's Meads nr Hertford, 1 Little Ringed Plover (Steve Chilton)
King's Meads nr Hertford, 7 Wood Sandpiper, Park Mead. Till 16.40pm atleast. (Steve Chilton)
Maple Cross [TQ024923] 1+ Linnet (Chris Bessant)
Maple Lodge NR (members only) [TQ037920] 3+ Reed Warbler (Chris Bessant)
Maple Lodge NR (members only) [TQ037920] 2 Red-crested Pochard, Pair (Chris Bessant)
Maple Lodge NR (members only) [TQ037920] 2 Garden Warbler (Chris Bessant)
Stevenage - Fairlands Valley Park Lakes - N of Six HIlls Way, 2 Whitethroat, 2 singing males (Tom Speller)
Stevenage - Fairlands Valley Park Lakes - N of Six HIlls Way [TL253240] 2 Common Sandpiper (Tom Speller)
Stocker's Lake, 2 Common Tern (Steve Carter )
Tewin [TL278146] 1 Yellowhammer (Aaron Clements-Partridge)
Tewin [TL284143] 4 Swallow (Aaron Clements-Partridge)
Tewin [TL279141] 2 Swallow (Aaron Clements-Partridge)
Tring Reservoirs - Wilstone Res, 2 Common Sandpiper (Ian Williams)
Tring Reservoirs - Wilstone Res, 5 Little Egret (Ian Williams)
Tring Reservoirs - Wilstone Res, 5 Cattle Egret, flew through west at 6am (Ian Williams)
Tring Reservoirs - Wilstone Res, 1 Shelduck, female early morning (Ian Williams)
Tyttenhanger GPs - Coursers Road GPs [TL200043] 1 Greenshank (Rupert Evershed)
Tyttenhanger GPs - Coursers Road GPs [TL200043] 1 Wood Sandpiper (Rupert Evershed)
Waterford Heath GP [TL319147] 1 Lesser Whitethroat, Singing in pond area in centre of South Heath (Callum Peel)
Waterford Heath GP [TL319147] 1 Whitethroat, Singing in pond area in centre of South Heath (Callum Peel)
