| Red-throated Diver | 15 Nov 1997 | Bray GP |
| Black-throated Diver | Jan 1995 | Theale Main Pit |
| Great Northern Diver | Dec 2001 | Hurst Green, 'Jon Baker Pit' |
| Little Grebe | | |
| Great Crested Grebe | | |
| Red-necked Grebe | | |
| Slavonian Grebe | 22 Nov 1992 | Moatlands GP |
| Black-necked Grebe | 22 Sep 1992 | Queen Mother Resvr |
| Storm Petrel | 02 Dec 2003 | Queen Mother Reservoir |
| Leach's Petrel | 03 Oct 1999 | Theale Main Pit |
| Gannet | 03 July 2004 | Dinton Pasture, Black Swan Lake |
| Cormorant | | |
| Shag | 11 Aug 2005 | Queen Mother Resvr |
| Bittern | | |
| Little Egret | | |
| Great White Egret | 26 Dec 2010 | Great Shefford |
| Grey Heron | | |
| Purple Heron | 06 Apr 2010 | Lavell's Lake |
| Glossy Ibis | 26 Dec 2010 | Freeman's Marsh |
| Spoonbill | 17 Sep 2001 | Moatlands Pit |
| Mute Swan | | |
| Bewick's Swan | Dec 1992 | Theale Main Pit |
| Bean Goose sp. | 06 Jan 2007 | Remenham Marsh |
| Pink-footed Goose | Jan 2009 | Streatley |
| White-fronted Goose | 17 Dec 1998 | Cock Marsh |
| Greylag Goose | | |
| Canada Goose | | |
| Brent Goose | Apr 2003 | Lower Farm Trout Lake |
| Egyptian Goose | | |
| Shelduck | | |
| Mandarin Duck | | |
| Wigeon | | |
| American Wigeon | Dec 2008 | Lower Farm GP |
| Gadwall | | |
| Green-winged Teal | 18 Nov 2001 | Moor Green Lakes |
| Teal | | |
| Mallard | | |
| Pintail | | |
| Garganey | | |
| Shoveler | | |
| Red-crested Pochard | | |
| Pochard | | |
| Ring-necked Duck | 05 Apr 1999 | Lower Farm GP |
| Ferruginous Duck | Feb 1988 | Dinton Pastures, Black Swan Lake |
| Tufted Duck | | |
| Scaup | | |
| Eider | 21 Apr 2003 | Lea Farm GP |
| Long-tailed Duck | Jan 1999 | Wigmore Lane GP |
| Common Scoter | | |
| Goldeneye | | |
| Smew | | |
| Red-breasted Merganser | 15 Nov 1997 | Wraysbury Heron Lakes |
| Goosander | | |
| Ruddy Duck | | |
| Honey-buzzard | ********** | ********** |
| Red Kite | | |
| Hen Harrier | 30 Aug 2021 | Blewbury Down |
| Montagu's Harrier | | |
| Sparrowhawk | | |
| Buzzard | | |
| Rough-legged Buzzard | 15 Feb 2009 | Faccombe |
| Osprey | | |
| Kestrel | | |
| Red-footed Falcon | 05 Jul 2003 | Burnthouse Lane |
| Merlin | | |
| Hobby | | |
| Peregrine | | |
| Red-legged Partridge | | |
| Grey Partridge | | |
| Pheasant | | |
| Water Rail | | |
| Spotted Crake | | Lavell's lake |
| Moorhen | | |
| Coot | | |
| Oystercatcher | | |
| Avocet | 09 Mar 2003 | Woolhampton GP |
| Stone-curlew | | |
| Little Ringed Plover | | |
| Ringed Plover | | |
| Dotterel | 17 May 2004 | Bury Down |
| Golden Plover | | |
| Grey Plover | 28 Dec 2007 | Dorney Wetlands |
| Lapwing | | |
| Knot | 19 Oct 2003 | Queen Mother Resvr |
| Sanderling | Aug 2004 | Queen Mother Resvr |
| Little Stint | 21 Sep 2006 | QMR |
| Temminck's Stint | 01 Jun 1991 | Temminck's Stint |
| Pectoral Sandpiper | 04 Nov 2003 | Moor Green Lakes |
| Curlew Sandpiper | | |
| Dunlin | | |
| Ruff | | |
| Jack Snipe | | |
| Snipe | | |
| Woodcock | | |
| Black-tailed Godwit | | |
| Bar-tailed Godwit | 12 May 2006 | Moor Green Lakes |
| Curlew | | |
| Spotted Redshank | 15 Mar 2003 | Lavell's Lake |
| Redshank | | |
| Greenshank | | |
| Green Sandpiper | | |
| Wood Sandpiper | 19 Aug 1992 | Theale, Hanson gravel works |
| Common Sandpiper | | |
| Turnstone | | |
| Grey Phalarope | 15 Nov 2003 | Queen Mother Resvr |
| Arctic Skua | 19 Oct 2003 | Queen Mother Resvr |
| Long-tailed Skua | 16 Sep 2006 | Queen Mother Resvr |
| Great Skua | 23 Sep 2004 | Queen Mother Resvr |
| Mediterranean Gull | | |
| Laughing Gull | 03 Dec 2005 | Smallmead Pit |
| Little Gull | | |
| Black-headed Gull | | |
| Common Gull | | |
| Lesser Black-backed Gull | | |
| Herring Gull | | |
| Caspian Gull | 17 January 2004 | Dinton Pastures |
| Yellow-legged Gull | | |
| Iceland Gull | 31 Mar 1998 | Queen Mother Resvr |
| Glaucous Gull | 27/03/2019 | Queen Mother Reservoir |
| Great Black-backed Gull | | |
| Kittiwake | 10 Feb 2002 | Lower Farm |
| Sandwich Tern | 02 Apr 2004 | Queen Mother Resvr |
| Roseate Tern | 13 May 2011 | Eton Wick Weir |
| Common Tern | | |
| Arctic Tern | | |
| Little Tern | 15 Apr 2003 | Dinton Pastures, Black Swan Lake |
| Whiskered Tern | May 2005 | Moor Green Lakes |
| Black Tern | | |
| Feral Pigeon | | |
| Stock Dove | | |
| Woodpigeon | | |
| Collared Dove | | |
| Turtle Dove | | |
| Ring-necked Parakeet | | |
| Cuckoo | | |
| Barn Owl | | |
| Little Owl | | |
| Tawny Owl | | |
| Long-eared Owl | ********** | ********** |
| Short-eared Owl | | |
| Nightjar | | |
| Swift | | |
| Kingfisher | | |
| Hoopoe | Aug 2000 | Hurst Green |
| Green Woodpecker | | |
| Great Spotted Woodpecker | | |
| Lesser Spotted Woodpecker | | |
| Woodlark | | |
| Skylark | | |
| Sand Martin | | |
| Swallow | | |
| Red-rumped Swallow | 11 May 1999 | Hosehill Lake |
| House Martin | | |
| Olive-backed Pipit | Mar 1984 | Bracknell |
| Tree Pipit | | |
| Meadow Pipit | | |
| Rock Pipit | 30 Sep 2004 | Queen Mother Resvr |
| Buff-bellied Pipit | 26 Dec 2012 | Queen Mother Resvr |
| Water Pipit | 04 Apr 1991 | Lavell's Lake |
| Yellow Wagtail | | |
| Grey Wagtail | | |
| Pied Wagtail | | |
| Waxwing | | |
| Dipper | 27 Dec 2010 | Welford |
| Wren | | |
| Dunnock | | |
| Robin | | |
| Nightingale | | |
| Black Redstart | | |
| Redstart | | |
| Whinchat | | |
| Stonechat | | |
| Wheatear | | |
| Ring Ouzel | 07 Apr 2002 | Burnthouse Lane |
| Blackbird | | |
| Black-throated Thrush | 9 Jan 1999 | Woodlands Park, Maidenhead |
| Fieldfare | | |
| Song Thrush | | |
| Redwing | | |
| Mistle Thrush | | |
| Cetti's Warbler | | |
| Grasshopper Warbler | | |
| Sedge Warbler | | |
| Marsh Warbler | 10 Jun 1989 | Lavell's Lake |
| Reed Warbler | | |
| Dartford Warbler | | |
| Lesser Whitethroat | | |
| Whitethroat | | |
| Garden Warbler | | |
| Blackcap | | |
| Yellow-browed Warbler | 30 Oct 2003 | Theale Main Pit |
| Wood Warbler | | |
| Chiffchaff | | |
| Willow Warbler | | |
| Goldcrest | | |
| Firecrest | | |
| Spotted Flycatcher | | |
| Pied Flycatcher | 11 Apr 1988 | Joel Park, Wokingham |
| Bearded Tit | 03 Jan 2004 | Burghfield GP |
| Long-tailed Tit | | |
| Marsh Tit | | |
| Willow Tit | | |
| Coal Tit | | |
| Blue Tit | | |
| Great Tit | | |
| Nuthatch | | |
| Treecreeper | | |
| Red-backed Shrike | 03 Aug 2003 | Greenham Common |
| Great Grey Shrike | Nov 1991 | Wishmoor Common |
| Jay | | |
| Magpie | | |
| Jackdaw | | |
| Rook | | |
| Carrion Crow | | |
| Raven | 09 May 2006 | Cold Harbour |
| Starling | | |
| House Sparrow | | |
| Tree Sparrow | | |
| Chaffinch | | |
| Brambling | | |
| Greenfinch | | |
| Goldfinch | | |
| Siskin | | |
| Linnet | | |
| Lesser Redpoll | | |
| Common Crossbill | | |
| Parrot Crossbill | 23 Dec 2017 | Wishmoor Common |
| Bullfinch | | |
| Hawfinch | | |
| Lapland Bunting | 14 Oct 1998 | Datchet fields |
| Snow Bunting | 02 Dec 2003 | Queen Mother Resvr |
| Yellowhammer | | |
| Reed Bunting | | |
| Corn Bunting | | |