| Little Grebe | | |
| Great Crested Grebe | | |
| Black-necked Grebe | ********** | ********** |
| Cormorant | | |
| Cattle Egret | 12/05/2014 | LMGP |
| Little Egret | | |
| Great White Egret | 18/10/2017 | LMGP |
| Grey Heron | | |
| White Stork | 13/05/2019 | Stoke Common |
| Glossy Ibis | 09/09/2021 | LMGP |
| Spoonbill | May 07, May 14, Jul 14 | Dorney, LMGP |
| Mute Swan | | |
| Bewick's Swan | Dec 2010 | LMGP. Reidentified reported Whoopers |
| White-fronted Goose | Nov 11, Jan 13 | LMGP, Jubilee River |
| Greylag Goose | | |
| Canada Goose | | |
| Brent Goose | Sep 16, Nov 16, Mar 17 | LMGP |
| Egyptian Goose | | |
| Shelduck | | |
| Mandarin Duck | | |
| Wigeon | | |
| Gadwall | | |
| Teal | | |
| Mallard | | |
| Pintail | | |
| Garganey | | |
| Shoveler | | |
| Red-crested Pochard | | |
| Pochard | | |
| Ferruginous Duck | 27/02/2017 | LMGP |
| Tufted Duck | | |
| Scaup | | |
| Common Scoter | 31/10/2017 | Dorney Lake |
| Goldeneye | | |
| Goosander | | |
| Ruddy Duck | | |
| Honey-buzzard | Sep 09, Aug 14 | Marlow, LMGP |
| Red Kite | | |
| Marsh Harrier | | |
| Hen Harrier | 06/10/2015 | Little Marlow |
| Goshawk | ********** | ********** |
| Sparrowhawk | | |
| Buzzard | | |
| Osprey | | |
| Kestrel | | |
| Merlin | | |
| Hobby | | |
| Peregrine | | |
| Red-legged Partridge | | |
| Grey Partridge | | |
| Pheasant | | |
| Water Rail | | |
| Moorhen | | |
| Coot | | |
| Crane | 06/05/2013 | LMGP |
| Oystercatcher | | |
| Avocet | 06/10/2014 | LMGP |
| Little Ringed Plover | | |
| Ringed Plover | | |
| Golden Plover | | |
| Grey Plover | 08/05/2014 | LMGP |
| Lapwing | | |
| Knot | 16/11/2012 | LMGP |
| Sanderling | | |
| Little Stint | 16/05/2017 | LMGP |
| Temminck's Stint | 29/06/2021 | LMGP |
| Dunlin | | |
| Ruff | | |
| Jack Snipe | | |
| Snipe | | |
| Woodcock | | |
| Black-tailed Godwit | | |
| Bar-tailed Godwit | 29/04/2011 | LMGP |
| Whimbrel | | |
| Curlew | | |
| Common Sandpiper | | |
| Green Sandpiper | | |
| Spotted Redshank | 01/09/2017 | LMGP |
| Greenshank | | |
| Wood Sandpiper | 2010/11/13/14 | LMGP |
| Redshank | | |
| Red-necked Phalarope | 07/06/2020 | LMGP |
| Kittiwake | Mar 14, Apr 15, May 15, Nov 15 | LMGP |
| Black-headed Gull | | |
| Little Gull | | |
| Mediterranean Gull | | |
| Common Gull | | |
| Ring-billed Gull | 20/01/2014 | LMGP |
| Lesser Black-backed Gull | | |
| Herring Gull | | |
| Yellow-legged Gull | | |
| Caspian Gull | | |
| Iceland Gull | Mar 05, Jan 12 | LMGP |
| Glaucous Gull | Feb 12, Jan 16 | LMGP |
| Great Black-backed Gull | | |
| Little Tern | Aug 11, Aug 12, Apr 15 | LMGP |
| Black Tern | | |
| Sandwich Tern | Apr 05, Sep 11, Apr 12, Sep 13, Aug 17 | LMGP |
| Common Tern | | |
| Arctic Tern | | |
| Rock Dove / Feral Pigeon | | |
| Stock Dove | | |
| Woodpigeon | | |
| Collared Dove | | |
| Ring-necked Parakeet | | |
| Cuckoo | | |
| Barn Owl | | |
| Little Owl | | |
| Tawny Owl | | |
| Long-eared Owl | | |
| Short-eared Owl | ********** | ********** |
| Nightjar | | |
| Swift | | |
| Kingfisher | | |
| Green Woodpecker | | |
| Great Spotted Woodpecker | | |
| Lesser Spotted Woodpecker | | |
| Woodlark | | |
| Skylark | | |
| Sand Martin | | |
| Swallow | | |
| House Martin | | |
| Red-rumped Swallow | 27/04/2022 | LMGP |
| Tree Pipit | 24/08/2020 | Marlow Bottom, LMGP, Emmetts, Dorney |
| Meadow Pipit | | |
| Rock Pipit | 13/10/2010 | Dorney - 1st |
| Yellow Wagtail | | |
| Grey Wagtail | | |
| Pied Wagtail | | |
| Waxwing | Dec 10, Feb 11, Mar 11, Dec 12 | Marlow, LMGP |
| Wren | | |
| Dunnock | | |
| Robin | | |
| Redstart | | |
| Whinchat | | |
| Stonechat | | |
| Wheatear | | |
| Ring Ouzel | 18/04/2019 | Pump Lane, Marlow - 1st. Several since |
| Blackbird | | |
| Fieldfare | | |
| Song Thrush | | |
| Redwing | | |
| Mistle Thrush | | |
| Cetti's Warbler | | |
| Grasshopper Warbler | Sep 15, Apr 17 | Marlow, LMGP |
| Sedge Warbler | | |
| Reed Warbler | | |
| Blackcap | | |
| Garden Warbler | | |
| Lesser Whitethroat | | |
| Whitethroat | | |
| Dartford Warbler | ********** | ********** |
| Yellow-browed Warbler | 27/09/2017 | LMGP |
| Wood Warbler | Jul 12, Apr 13 x3 | Marlow, LMGP |
| Chiffchaff | | |
| Willow Warbler | | |
| Goldcrest | | |
| Firecrest | | |
| Spotted Flycatcher | | |
| Pied Flycatcher | Aug 04, Aug 10, Apr 15 | Marlow, LMGP |
| Long-tailed Tit | | |
| Blue Tit | | |
| Great Tit | | |
| Coal Tit | | |
| Marsh Tit | | |
| Nuthatch | | |
| Treecreeper | | |
| Great Grey Shrike | 22/10/19 | Wapseys |
| Jay | | |
| Magpie | | |
| Jackdaw | | |
| Rook | | |
| Carrion Crow | | |
| Raven | | |
| Starling | | |
| House Sparrow | | |
| Tree Sparrow | May 90 | Willen |
| Chaffinch | | |
| Brambling | | |
| Greenfinch | | |
| Goldfinch | | |
| Siskin | | |
| Linnet | | |
| Redpoll | | |
| Common Crossbill | | |
| Bullfinch | | |
| Hawfinch | 16/10/2017 | Marlow Bottom |
| Yellowhammer | | |
| Reed Bunting | | |
| Corn Bunting | | |