| Canada Goose | | . |
| Greylag Goose | | . |
| White-fronted Goose | 03/01/2026 | Sonning Farm |
| Mute Swan | | . |
| Whooper Swan | 26/10/2025 | Theale Main Pit (twitched 1 and found another 4) |
| Egyptian Goose | | . |
| Shelduck | 20/12/1997 | Lower Farm GP |
| Mandarin Duck | | . |
| Garganey | 30/08/2001 | Dinton Pastures |
| Shoveler | | . |
| Gadwall | | . |
| Wigeon | | . |
| Mallard | | . |
| Pintail | 14/03/2002 | Sonning |
| Teal | | |
| Red-crested Pochard | 27/09/1997 | Moatlands GP |
| Pochard | | . |
| Ring-necked Duck | 23/11/2001 | Searle's Farm Lane GP (also Theale GP 2025) |
| Tufted Duck | | . |
| Scaup | 19/03/2005 | Woolhampton GP |
| Common Scoter | 15/02/2003 | Moatlands GP |
| Goldeneye | | . |
| Smew | 08/11/1997 | Moatlands GP |
| Goosander | | . |
| Red-breasted Merganser | 12/12/2001 | Main Pit, Theale GP |
| Ruddy Duck | ********** | ********** |
| Grey Partridge | | . |
| Pheasant | | . |
| Quail | ********** | ********** |
| Red-legged Partridge | | . |
| Nightjar | 25/06/2002 | Edgebarrow |
| Swift | | . |
| Cuckoo | | . |
| Feral Pigeon | | . |
| Stock Dove | | . |
| Woodpigeon | | . |
| Turtle Dove | ********** | ********** |
| Collared Dove | | . |
| Water Rail | 23/11/2001 | Bottom Lane GP |
| Spotted Crake | 04/09/2002 | Lavell's Lake (also Eton Wick 2018) |
| Moorhen | | . |
| Coot | | . |
| Little Grebe | | . |
| Great Crested Grebe | | . |
| Slavonian Grebe | 22/12/2002 | Burnthouse Lane GP |
| Black-necked Grebe | 13/09/2003 | Main Pit, Theale |
| Stone-curlew | ********** | ********** |
| Oystercatcher | 10/05/2001 | Burnthouse Lane GP |
| Grey Plover | 06/04/2008 | Burnthouse Lane GP |
| Golden Plover | | . |
| Dotterel | 20/08/2009 | West Ilsley |
| Ringed Plover | | . |
| Little Ringed Plover | ********** | ********** |
| Lapwing | | . |
| Whimbrel | 11/04/2003 | Burnthouse Lane GP |
| Curlew | 30/03/2002 | Burnthouse Lane GP |
| Bar-tailed Godwit | 27/04/2024 | Theale Man Pit |
| Black-tailed Godwit | 28/07/2001 | Burnthouse Lane GP |
| Jack Snipe | 29/03/2003 | Woolhampton GP |
| Woodcock | | . |
| Snipe | | . |
| Common Sandpiper | | . |
| Green Sandpiper | | . |
| Wood Sandpiper | 10/07/2011 | Berrys Lane GP |
| Redshank | | . |
| Spotted Redshank | 25/08/2007 | Burnthouse Lane GP |
| Greenshank | 21/08/2001 | Whistley Mill GP |
| Turnstone | 14/09/2024 | QMR |
| Knot | 11/09/2020 | QMR |
| Ruff | 10/10/2007 | Burnthouse Lane GP |
| Curlew Sandpiper | 24/08/2025 | Queen Mother Reservoir |
| Sanderling | 04/06/2012 | Burnthouse Lane GP |
| Dunlin | | . |
| Little Stint | 18/09/2008 | Borough Marsh |
| Little Tern | 06/05/2011 | Main Pit, Theale GP |
| Black Tern | 24/07/2000 | Hosehill Lake |
| Arctic Tern | 19/04/2002 | Moatlands GP |
| Common Tern | | . |
| Sandwich Tern | 08/09/2001 | Moatlands GP |
| Little Gull | 25/08/2002 | Moatlands GP |
| Kittiwake | 30/11/1997 | Hosehill Lake |
| Black-headed Gull | | . |
| Mediterranean Gull | ********** | ********** |
| Common Gull | | . |
| Caspian Gull | 27/11/2004 | Lea Farm GP |
| Herring Gull | | . |
| Yellow-legged Gull | | . |
| Great Black-backed Gull | | . |
| Lesser Black-backed Gull | | . |
| Great Skua | 13/09/2011 | Main Pit, Theale GP |
| Great Northern Diver | 09/11/2008 | Main Pit, Theale GP |
| Cormorant | | . |
| Shag | 31/08/2008 | Moatlands GP |
| Spoonbill | 10/09/2001 | Moatlands GP |
| Bittern | 11/01/2003 | Horton GP |
| Little Egret | ********** | ********** |
| Great White Egret | 18/12/2020 | Main Pit, Theale GPs |
| Cattle Egret | ********** | ********** |
| Grey Heron | | . |
| Honey-buzzard | ********** | ********** |
| Sparrowhawk | | . |
| Goshawk | ********** | ********** |
| Marsh Harrier | 11/09/2004 | Woolhampton GP |
| Hen Harrier | 07/12/2002 | Bockhampton Down |
| Red Kite | | . |
| Buzzard | | . |
| Barn Owl | ********** | ********** |
| Little Owl | 19/04/2002 | Winnersh |
| Long-eared Owl | ********** | ********** |
| Tawny Owl | | . |
| Kingfisher | | . |
| Lesser Spotted Woodpecker | ********** | ********** |
| Great Spotted Woodpecker | | . |
| Green Woodpecker | | . |
| Kestrel | | . |
| Hobby | 09/05/1998 | Bottom Lane GP |
| Peregrine | | ********** |
| Ring-necked Parakeet | | . |
| Jay | | . |
| Magpie | | . |
| Jackdaw | | . |
| Rook | | . |
| Carrion Crow | | |
| Raven | 05/03/2005 | Decoy Heath |
| Coal Tit | | . |
| Marsh Tit | | . |
| Blue Tit | | . |
| Great Tit | | . |
| Woodlark | | ********** |
| Skylark | | . |
| Sand Martin | | . |
| Swallow | | . |
| House Martin | | . |
| Cetti's Warbler | 09/04/2005 | Benhambridge Lock |
| Long-tailed Tit | | . |
| Willow Warbler | | . |
| Chiffchaff | | . |
| Sedge Warbler | | . |
| Reed Warbler | | . |
| Grasshopper Warbler | 04/07/2001 | Sandford Farm |
| Blackcap | | . |
| Garden Warbler | | . |
| Lesser Whitethroat | | . |
| Whitethroat | | . |
| Firecrest | ********** | ********** |
| Goldcrest | | . |
| Wren | | . |
| Nuthatch | | . |
| Treecreeper | | . |
| Starling | | . |
| Song Thrush | | . |
| Mistle Thrush | | . |
| Redwing | | . |
| Blackbird | | . |
| Fieldfare | | . |
| Ring Ouzel | 22/10/2006 | Cow Down, West Ilsley |
| Spotted Flycatcher | | . |
| Robin | | . |
| Nightingale | | . |
| Pied Flycatcher | 12/04/2008 | Greenham Common (also Padworth Common 2010) |
| Black Redstart | ********** | ********** |
| Redstart | 15/04/2006 | West Woodhay |
| Whinchat | | . |
| Stonechat | 07/04/2000 | Lower Farm GP |
| Wheatear | | . |
| Tree Sparrow | 17/05/2002 | Eling |
| House Sparrow | | . |
| Dunnock | | . |
| Yellow Wagtail | | . |
| Grey Wagtail | | . |
| Pied Wagtail | | . |
| Meadow Pipit | | . |
| Tree Pipit | | . |
| Water Pipit | 25/03/2006 | Midgham GP |
| Rock Pipit | 20/10/2002 | QMR |
| Chaffinch | | . |
| Brambling | | . |
| Hawfinch | 08/03/2009 | Combe Wood |
| Bullfinch | | . |
| Greenfinch | | . |
| Linnet | | . |
| Lesser Redpoll | | |
| Crossbill | 16/02/2003 | Combe Wood |
| Goldfinch | | . |
| Siskin | | . |
| Corn Bunting | | . |
| Yellowhammer | | . |
| Reed Bunting | | . |