John Birkett's 2021 year list
| Species | Date | Location |
|---|---|---|
| Little Grebe | 26/7/2021 | Waddon Ponds |
| Cormorant | 6/2/2021 | Warlingham |
| Grey Heron | 6/2/2021 | Warlingham |
| Mute Swan | 26/7/2021 | Waddon Ponds |
| Greylag Goose | 24/4/2021 | Sanderstead |
| Canada Goose | 26/2/2021 | Sanderstead Pond |
| Egyptian Goose | 23/8/2021 | Waddon Ponds |
| Mallard | 5/1/2021 | Sanderstead Pond |
| Tufted Duck | 26/7/2021 | Waddon Ponds |
| Honey-buzzard | ********** | ********** |
| Red Kite | 7/1/2021 | Warlingham |
| Sparrowhawk | 2/1/2021 | Briton Hill Road |
| Buzzard | 2/1/2021 | Riddlesdown |
| Kestrel | 2/1/2021 | Riddlesdown |
| Peregrine | ********** | ********** |
| Quail | ********** | ********** |
| Pheasant | 21/3/2021 | Purley Downs GC |
| Moorhen | 11/1/2021 | Sanderstead Pond |
| Coot | 26/7/2021 | Waddon Ponds |
| Golden Plover | 18/1/2021 | Over Briton Hill Road |
| Black-headed Gull | 1/1/2021 | Briton Hill Road |
| Common Gull | 28/1/2021 | Warlingham |
| Lesser Black-backed Gull | 30/1/2021 | Briton Hill Road |
| Herring Gull | 1/1/2021 | Briton Hill Road |
| Rock Dove / Feral Pigeon | 1/1/2021 | Briton Hill Road |
| Stock Dove | 1/1/2021 | Briton Hill Road |
| Woodpigeon | 1/1/2021 | Briton Hill Road |
| Collared Dove | 3/1/2021 | Briton Hill Road |
| Ring-necked Parakeet | 1/1/2021 | Briton Hill Road |
| Tawny Owl | 15/1/2021 | Briton Hill Road |
| Swift | 19/5/2021 | Sanderstead |
| Green Woodpecker | 30/1/2021 | Briton Hill Road |
| Great Spotted Woodpecker | 2/1/2021 | Riddlesdown |
| Skylark | 31/1/2021 | Riddlesdown |
| Swallow | ********** | ********** |
| House Martin | ********** | ********** |
| Meadow Pipit | 26/3/2021 | Warlingham |
| Grey Wagtail | 7/6/2021 | Heathfield |
| Pied Wagtail | 1/1/2021 | Briton Hill Road |
| Wren | 2/1/2021 | Riddlesdown |
| Dunnock | 1/1/2021 | Briton Hill Road |
| Robin | 1/1/2021 | Briton Hill Road |
| Black Redstart | ********** | ********** |
| Stonechat | 31/1/2021 | Riddlesdown |
| Wheatear | ********** | ********** |
| Ring Ouzel | ********** | ********** |
| Blackbird | 1/1/2021 | Briton Hill Road |
| Fieldfare | 9/2/2021 | Briton Hill Road |
| Song Thrush | 6/1/2021 | Briton Hill Road |
| Redwing | 1/1/2021 | Briton Hill Road |
| Mistle Thrush | 3/2/2021 | Briton Hill Road |
| Sedge Warbler | 26/7/2021 | Wandle Park, Croydon |
| Blackcap | 1/1/2021 | Briton Hill Road |
| Lesser Whitethroat | 26/6/2021 | Addington Village Interchange |
| Whitethroat | 25/4/2021 | Riddlesdown |
| Chiffchaff | 27/3/2021 | Purley Beeches |
| Willow Warbler | 11/8/2021 | Briton Hill Road |
| Goldcrest | 3/1/2021 | Briton Hill Road |
| Long-tailed Tit | 2/1/2021 | Riddlesdown |
| Blue Tit | 1/1/2021 | Briton Hill Road |
| Great Tit | 1/1/2021 | Briton Hill Road |
| Coal Tit | 1/1/2021 | Briton Hill Road |
| Nuthatch | 1/1/2021 | Briton Hill Road |
| Treecreeper | 31/5/2021 | King's Wood, Sanderstead |
| Jay | 1/1/2021 | Briton Hill Road |
| Magpie | 1/1/2021 | Briton Hill Road |
| Jackdaw | 2/1/2021 | Briton Hill Road |
| Carrion Crow | 1/1/2021 | Briton Hill Road |
| Starling | 3/1/2021 | Briton Hill Road |
| House Sparrow | 15/1/2021 | Hamsey Green |
| Chaffinch | 1/1/2021 | Briton Hill Road |
| Greenfinch | 1/1/2021 | Briton Hill Road |
| Goldfinch | 1/1/2021 | Briton Hill Road |
| Siskin | 25/1/2021 | Briton Hill Road |
| Linnet | 25/4/2021 | Riddlesdown |
| Lesser Redpoll | 23/3/21 | Briton Hill Road |
| Bullfinch | 2/1/2021 | Riddlesdown |