| Brent Goose | 12/04/2003 | Lower Farm GP |
| Canada Goose | 19/02/2000 | Theale GP |
| Barnacle Goose | 01/01/2011 | Dorney Wetlands |
| Greylag Goose | 19/02/2000 | Theale GP |
| Pink-footed Goose | 17/01/2009 | Streatley |
| Tundra Bean Goose | 14/12/2004 | Cold Harbour |
| White-fronted Goose | 14/12/2002 | Hurst |
| Mute Swan | 27/11/1999 | Wraysbury GP |
| Bewick's Swan | 23/12/2000 | Widbrook Common |
| Whooper Swan | 08/11/2009 | Lower Farm GP |
| Egyptian Goose | 16/08/1998 | Dinton Pastures |
| Shelduck | 20/12/1997 | Lower Farm GP |
| Mandarin Duck | 07/09/2000 | Whiteknights Lake |
| Garganey | ********** | ********** |
| Blue-winged Teal | 17/05/2024 | Chamberhouse Marsh |
| Shoveler | 27/11/1999 | Wraysbury GP |
| Gadwall | 19/02/2000 | Theale GP |
| Wigeon | 19/02/2000 | Theale GP |
| American Wigeon | 20/11/2008 | Lower Farm GP |
| Mallard | 27/11/1999 | Wraysbury GP |
| Pintail | 08/11/1997 | Lower Farm GP |
| Teal | 19/02/2000 | Theale GP |
| Green-winged Teal | 17/11/2001 | Moor Green Lakes |
| Red-crested Pochard | 27/09/1997 | Moatlands, Theale GP |
| Pochard | 27/11/1999 | Wraysbury GP |
| Ferruginous Duck | 04/02/2001 | Searles Lane, Burghfield GP |
| Ring-necked Duck | 23/11/2001 | Searles Lane, Burghfield GP |
| Tufted Duck | 27/11/1999 | Wraysbury GP |
| Scaup | 30/12/2000 | Main Pit, Theale GP |
| Lesser Scaup | 31/10/2007 | Woolhampton GP |
| Eider | 21/04/2003 | Lea Farm GP |
| Velvet Scoter | 16/01/2008 | QMR |
| Common Scoter | 02/04/2002 | Moor Green Lakes |
| Long-tailed Duck | 12/11/2009 | Moatlands, Theale GP |
| Goldeneye | 27/11/1999 | Wraysbury GP |
| Smew | 08/11/1997 | Moatlands, Theale GP |
| Goosander | 15/02/1998 | Moatlands, Theale GP |
| Red-breasted Merganser | 18/04/1998 | Hosehill Lake, Theale GP |
| Ruddy Duck | ********** | ********** |
| Grey Partridge | 03/09/2000 | Englefield |
| Pheasant | 05/04/1998 | Inkpen Hill |
| Quail | ********** | ********** |
| Red-legged Partridge | 05/04/1998 | Inkpen |
| Nightjar | 05/05/2001 | Caesars Camp |
| Alpine Swift | 15/04/2006 | Maidenhead |
| Swift | 25/04/1998 | Burghfield Mill, Theale GP |
| Cuckoo | 26/04/1998 | Thatcham Marsh |
| Feral Pigeon | 16/01/2000 | Theale GP |
| Stock Dove | 12/08/1997 | Lower Farm GP |
| Woodpigeon | 27/11/1999 | Wraysbury GP |
| Turtle Dove | ********** | ********** |
| Collared Dove | 27/11/1999 | Wraysbury GP |
| Water Rail | 23/08/1997 | Lavells Lake |
| Corncrake | 17/06/2008 | Hurst |
| Spotted Crake | 23/08/1997 | Lavells Lake |
| Moorhen | 27/11/1999 | Wraysbury GP |
| Coot | 27/11/1999 | Wraysbury GP |
| Little Grebe | 27/11/1999 | Wraysbury GP |
| Red-necked Grebe | 30/11/2002 | Woolhampton GP |
| Great Crested Grebe | 27/11/1999 | Wraysbury GP |
| Slavonian Grebe | 20/12/2002 | QMR |
| Black-necked Grebe | 12/10/1997 | Moatlands, Theale GP |
| Stone-curlew | ********** | ********** |
| Oystercatcher | 10/05/2001 | Burnthouse Lane GP |
| Black-winged Stilt | 11/09/2019 | Moor Green Lakes |
| Avocet | 09/03/2003 | Woolhampton GP |
| Grey Plover | 06/04/2002 | Burnthouse Lane GP |
| Golden Plover | 10/01/1998 | Lower Farm GP |
| Dotterel | 17/05/2004 | Bury Do nown |
| Ringed Plover | 14/02/1998 | Lower Farm GP |
| Little Ringed Plover | ********** | ********** |
| Lapwing | 19/02/2000 | Theale GP |
| Whimbrel | 11/04/2003 | Burnthouse Lane GP |
| Curlew | 23/06/2001 | Compton Downs |
| Bar-tailed Godwit | 12/05/2006 | Moor Green Lakes |
| Black-tailed Godwit | 01/09/2000 | Lavells Lake |
| Jack Snipe | 10/11/2001 | Decoy Heath |
| Woodcock | 05/05/2001 | Caesars Camp |
| Snipe | 10/01/1998 | Lower Farm GP |
| Grey Phalarope | 15/11/2003 | QMR |
| Red-necked Phalarope | 04/09/2001 | QMR |
| Common Sandpiper | 30/08/1997 | Moatlands, Theale GP |
| Green Sandpiper | 19/02/2000 | Theale GP |
| Wood Sandpiper | 13/08/2000 | Moor Green Lakes |
| Redshank | 19/02/2000 | Theale GP |
| Spotted Redshank | 12/09/2001 | Lower Farm GP |
| Greenshank | 23/08/1997 | Lavells Lake |
| Turnstone | 13/05/2002 | Moatlands, Theale GP |
| Knot | 16/05/2003 | Lower Farm GP |
| Ruff | 24/08/1997 | Lower Farm GP |
| Curlew Sandpiper | 08/09/2001 | Slough SF |
| Temminck's Stint | 08/05/2001 | Moor Green Lakes |
| Sanderling | 13/05/2002 | Burnthouse Lane GP |
| Dunlin | 09/05/1998 | Moatlands, Theale GP |
| Little Stint | 11/09/2001 | Burnthouse Lane GP |
| White-rumped Sandpiper | 22/07/2022 | Eton Wick |
| Pectoral Sandpiper | 01/11/2003 | Moor Green Lakes |
| Little Tern | 18/05/2002 | Dorney Wetlands |
| Whiskered Tern | 21/05/2005 | Moor Green Lakes |
| Black Tern | 24/07/2000 | Hosehill Lake, Theale GP |
| White-winged Black Tern | 09/09/2024 | Hosehill Lake, Theale GP |
| Arctic Tern | 09/05/1998 | Hosehill Lake, Theale GP |
| Common Tern | 12/10/1997 | Moatlands, Theale GP |
| Roseate Tern | 09/05/2011 | QMR |
| Sandwich Tern | 08/09/2001 | Moatlands, Theale GP |
| Little Gull | 02/04/2002 | Moatlands, Theale GP |
| Kittiwake | 30/11/1997 | Hosehill Lake, Theale GP |
| Bonaparte's Gull | 26/04/2013 | Hosehill, Theale GP |
| Black-headed Gull | 27/11/1999 | Wraysbury GP |
| Laughing Gull | 04/12/2005 | Rosekiln Lane, Reading |
| Mediterranean Gull | ********** | ********** |
| Common Gull | 16/01/2000 | Wraysbury GP |
| Caspian Gull | 08/02/2003 | Rosekiln Lane, Reading |
| Herring Gull | 30/11/1997 | Hosehill Lake, Theale GP |
| Yellow-legged Gull | 22/02/1998 | Lower Farm GP |
| Great Black-backed Gull | 19/02/2000 | Theale GP |
| Glaucous Gull | 17/01/2002 | Smallmead, Burghfield GP |
| Lesser Black-backed Gull | 16/01/2000 | Wraysbury GP |
| Iceland Gull | 02/03/2003 | QMR |
| Long-tailed Skua | 09/09/2006 | QMR |
| Arctic Skua | 19/10/2003 | QMR |
| Pomarine Skua | 21/11/2007 | QMR |
| Great Skua | 16/10/2004 | QMR |
| Red-throated Diver | 15/02/2003 | Village Pit, Wraysbury GP |
| Black-throated Diver | 23/01/2005 | Village Pit, Wraysbury GP |
| Great Northern Diver | 25/12/2001 | Twyford GP |
| Storm Petrel | 30/10/2000 | Searles Lane, Burghfield GP |
| Leach's Petrel | 16/10/2004 | QMR |
| Manx Shearwater | 17/09/2011 | QMR |
| White Stork | 01/05/2014 | Spencers Wood |
| Gannet | 03/07/2004 | Dinton Pastures |
| Cormorant | 27/11/1999 | Wraysbury GP |
| Shag | 25/04/2001 | Romney Lock, Windsor |
| Glossy Ibis | 11/12/2010 | Leverton |
| Spoonbill | 10/09/2001 | Burnthouse Lane GP |
| Bittern | 27/11/2001 | Hosehill Lake, Theale GP |
| Night-heron | 16/08/2020 | Dinton Pastures CP |
| Little Egret | ********** | ********** |
| Great White Egret | 28/12/2010 | Great Shefford |
| Cattle Egret | ********** | ********** |
| Grey Heron | 27/11/1999 | Wraysbury GP |
| Osprey | 16/04/2000 | Theale GP |
| Honey-buzzard | ********** | ********** |
| Sparrowhawk | 16/01/2000 | Wraysbury GP |
| Goshawk | ********** | |
| Marsh Harrier | 11/09/2004 | Woolhampton GP |
| Hen Harrier | 07/12/2002 | Lambourn Downs |
| Montagu's Harrier | ********** | ********** |
| Red Kite | 06/05/2001 | Streatley |
| Rough-legged Buzzard | 08/03/2009 | Combe Hill |
| Buzzard | 05/04/1998 | Inkpen Hill |
| Barn Owl | ********** | ********** |
| Little Owl | 14/02/1998 | Woolhampton STW |
| Long-eared Owl | ********** | ********** |
| Short-eared Owl | ********** | ********** |
| Tawny Owl | 07/06/2001 | Caversham |
| Hoopoe | 25/08/2000 | Twyford GP |
| Kingfisher | 04/04/1998 | Theale GP |
| Wryneck | 26/05/2001 | Wishmoor Bottom |
| Lesser Spotted Woodpecker | ********** | ********** |
| Great Spotted Woodpecker | 27/11/1999 | Wraysbury GP |
| Green Woodpecker | 27/11/1999 | Wraysbury GP |
| Kestrel | 16/01/2000 | Wraysbury GP |
| Red-footed Falcon | 04/07/2003 | Burnthouse Lane GP |
| Merlin | 03/02/2001 | Field Farm, Theale GP |
| Hobby | 09/05/1998 | Bottom Lane, Theale GP |
| Peregrine | ********** | ********** |
| Ring-necked Parakeet | 27/11/1999 | Wraysbury GP |
| Golden Oriole | 19/05/2002 | Clayfield Copse |
| Great Grey Shrike | 28/02/2000 | Wishmoor Bottom |
| Red-backed Shrike | 21/08/2002 | Slough SF |
| Jay | 27/11/1999 | Wraysbury GP |
| Magpie | 27/11/1999 | Wraysbury GP |
| Jackdaw | 23/11/1997 | Theale GP |
| Rook | 19/02/2000 | Theale GP |
| Carrion Crow | 27/11/1999 | Wraysbury GP |
| Hooded Crow | 09/05/2021 | Hurst |
| Raven | 28/07/2002 | Inkpen Hill |
| Waxwing | 08/02/2003 | Bracknell |
| Coal Tit | 26/02/2000 | Swinley Forest |
| Marsh Tit | 18/10/1997 | Theale GP |
| Willow Tit | ********** | ********** |
| Blue Tit | 27/11/1999 | Wraysbury GP |
| Great Tit | 27/11/1999 | Wraysbury GP |
| Bearded Tit | 30/12/2003 | Burghfield Mill, Theale GP |
| Woodlark | ********** | ********** |
| Skylark | 10/01/1998 | Lower Farm GP |
| Sand Martin | 04/04/1998 | Lower Farm GP |
| Swallow | 21/04/1998 | Lower Farm GP |
| House Martin | 21/04/1998 | Thatcham Marsh |
| Cetti's Warbler | 31/03/1998 | Thatcham Marsh |
| Long-tailed Tit | 27/11/1999 | Wraysbury GP |
| Wood Warbler | 27/04/2007 | Englemere Pond |
| Yellow-browed Warbler | 17/10/2013 | Dinton Pastures |
| Pallas's Warbler | 14/01/2013 | Moor Green Lakes |
| Willow Warbler | 18/04/1998 | Hosehill Lake, Theale GP |
| Chiffchaff | 27/11/1999 | Wraysbury GP |
| Great Reed Warbler | 22/05/2014 | Green Park, Reading |
| Sedge Warbler | 18/04/1998 | Burghfield Mill, Theale GP |
| Reed Warbler | 18/04/1998 | Hosehill Lake, Theale GP |
| Grasshopper Warbler | 22/07/1997 | Thatcham Marsh |
| Blackcap | 05/04/1998 | Inkpen Hill |
| Garden Warbler | 09/05/1998 | Searles Lane, Burghfield GP |
| Lesser Whitethroat | 16/06/2000 | Main Pit, Theale GP |
| Whitethroat | 25/04/1998 | Hosehill Lake, Theale GP |
| Dartford Warbler | ********** | ********** |
| Firecrest | ********** | ********** |
| Goldcrest | 16/01/2000 | Wraysbury GP |
| Wren | 27/11/1999 | Wraysbury GP |
| Nuthatch | 17/08/1997 | Snelsmore Common |
| Treecreeper | 25/10/1997 | Theale GP |
| Starling | 27/11/1999 | Wraysbury GP |
| Song Thrush | 27/11/1999 | Wraysbury GP |
| Mistle Thrush | 27/11/1999 | Wraysbury GP |
| Redwing | 27/11/1999 | Wraysbury GP |
| Blackbird | 27/11/1999 | Wraysbury GP |
| Fieldfare | 25/01/1998 | Theale GP |
| Ring Ouzel | 07/04/2002 | Burnthouse Lane GP |
| Spotted Flycatcher | 09/08/1997 | Thatcham Marsh |
| Robin | 27/11/1999 | Wraysbury GP |
| Nightingale | 25/04/1998 | Searles Lane, Burghfield GP |
| Bluethroat | 09/04/2009 | Woolhampton GP |
| Pied Flycatcher | 07/04/2001 | Twyford GP |
| Black Redstart | ********** | ********** |
| Redstart | 28/04/2001 | Wishmoor Bottom |
| Whinchat | 18/10/1997 | Lower Farm GP |
| Stonechat | 28/02/2000 | Wishmoor Bottom |
| Wheatear | 09/08/1997 | Lower Farm GP |
| Dipper | 28/12/2010 | Welford |
| Tree Sparrow | 17/05/2002 | Eling |
| House Sparrow | 16/01/2000 | Wraysbury GP |
| Dunnock | 16/01/2000 | Wraysbury GP |
| Yellow Wagtail | 18/04/1998 | Burghfield Mill, Theale GP |
| Grey Wagtail | 11/01/1998 | Moatlands, Theale GP |
| Pied Wagtail | 19/02/2000 | Theale GP |
| Richard's Pipit | 05/10/2002 | Compton Downs |
| Meadow Pipit | 10/01/1998 | Lower Farm GP |
| Tree Pipit | 06/06/1998 | Snelsmore Common |
| Buff-bellied Pipit | 14/12/2012 | QMR |
| Water Pipit | 30/03/2002 | Bunthouse Lane GP |
| Rock Pipit | 20/10/2002 | QMR |
| Chaffinch | 27/11/1999 | Wraysbury GP |
| Brambling | 14/03/1998 | Sulhamstead Abbots |
| Hawfinch | 31/12/2002 | Windsor Great Park |
| Bullfinch | 22/11/1997 | Freemans Marsh |
| Greenfinch | 16/02/2000 | Theale GP |
| Linnet | 01/02/1998 | Lower Farm GP |
| Lesser Redpoll | 25/11/2000 | Main Pit, Theale GP (Mealy Redpoll 25/11/2000 Main Pit, Theale GP) |
| Parrot Crossbill | 23/11/2017 | Swinley Forest |
| Crossbill | 26/02/2000 | Swinley Forest |
| Goldfinch | 27/11/1999 | Wraysbury GP |
| Siskin | 23/11/1997 | Theale GP |
| Lapland Bunting | 02/10/2002 | Horton |
| Snow Bunting | 02/12/2003 | QMR |
| Corn Bunting | 17/06/2001 | Cold Harbour |
| Yellowhammer | 25/08/1997 | Theale GP |
| Reed Bunting | 19/02/2000 | Theale GP |