Facts
- Records since 2000
- 99,042
- Species recorded
- 2,427
- Area
- 364.0 km²
- Population
- 207,699 (1 January 2022)
- Nation
- England
- Type of area
- Metropolitan Borough
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q1026448
Most recorded species in Calderdale
| # | Species | Group | Peak month | Records here |
|---|---|---|---|---|
| 1 | Carrion Crow Corvus corone | Birds | April | 2,810 |
| 2 | European Robin Erithacus rubecula | Birds | April | 2,560 |
| 3 | Common Wood-Pigeon Columba palumbus | Birds | April | 2,533 |
| 4 | Eurasian Blackbird Turdus merula | Birds | May | 2,490 |
| 5 | Eurasian Magpie Pica pica | Birds | April | 2,444 |
| 6 | Western Jackdaw Coloeus monedula | Birds | May | 2,326 |
| 7 | Eurasian Wren Troglodytes troglodytes | Birds | April | 2,314 |
| 8 | Mallard Anas platyrhynchos | Birds | April | 2,133 |
| 9 | Eurasian Blue Tit Cyanistes caeruleus | Birds | April | 1,894 |
| 10 | European Goldfinch Carduelis carduelis | Birds | April | 1,824 |
| 11 | Common Chaffinch Fringilla coelebs | Birds | April | 1,744 |
| 12 | Great Tit Parus major | Birds | April | 1,730 |
| 13 | Canada Goose (canadensis Group) Branta canadensis | Birds | April | 1,721 |
| 14 | Dunnock Prunella modularis | Birds | April | 1,678 |
| 15 | Meadow Pipit Anthus pratensis | Birds | October | 1,611 |
| 16 | European Starling Sturnus vulgaris | Birds | May | 1,425 |
| 17 | Ring-necked Pheasant Phasianus colchicus | Birds | April | 1,414 |
| 18 | Black-headed Gull Chroicocephalus ridibundus | Birds | January | 1,346 |
| 19 | Rock Pigeon Columba livia | Birds | April | 1,312 |
| 20 | Eurasian Kestrel Falco tinnunculus | Birds | October | 1,238 |
| 21 | White Wagtail Motacilla alba | Birds | April | 1,180 |
| 22 | Stock Dove Columba oenas | Birds | April | 1,156 |
| 23 | Lesser Black-backed Gull Larus fuscus | Birds | August | 1,130 |
| 24 | Barn Swallow Hirundo rustica | Birds | May | 1,112 |
| 25 | Eurasian Skylark Alauda arvensis | Birds | May | 1,080 |
| 26 | Coal Tit Periparus ater | Birds | January | 1,056 |
| 27 | House Sparrow Passer domesticus | Birds | May | 965 |
| 28 | Rook Corvus frugilegus | Birds | April | 926 |
| 29 | Eurasian Moorhen Gallinula chloropus | Birds | April | 920 |
| 30 | Herring Gull Larus argentatus | Birds | April | 914 |
| 31 | Northern Lapwing Vanellus vanellus | Birds | May | 898 |
| 32 | Eurasian Curlew Numenius arquata | Birds | October | 885 |
| 33 | Willow Warbler Phylloscopus trochilus | Birds | April | 839 |
| 34 | European Greenfinch Chloris chloris | Birds | April | 810 |
| 35 | Common Buzzard Buteo buteo | Birds | April | 809 |
| 36 | Long-tailed Tit Aegithalos caudatus | Birds | January | 802 |
| 37 | Eurasian Linnet Linaria cannabina | Birds | April | 796 |
| 38 | Reed Bunting Emberiza schoeniclus | Birds | May | 793 |
| 39 | Mew Gull Larus canus | Birds | January | 783 |
| 40 | Goldcrest Regulus regulus | Birds | October | 754 |
| 41 | Common Swift Apus apus | Birds | June | 749 |
| 42 | Gray Wagtail Motacilla cinerea | Birds | October | 744 |
| 43 | Song Thrush Turdus philomelos | Birds | May | 736 |
| 44 | Common Chiffchaff Phylloscopus collybita | Birds | April | 723 |
| 45 | Mistle Thrush Turdus viscivorus | Birds | April | 698 |
| 46 | Gray/Purple Heron Ardea cinerea | Birds | May | 694 |
| 47 | Eurasian Bullfinch Pyrrhula pyrrhula | Birds | January | 654 |
| 48 | Eurasian Nuthatch Sitta europaea | Birds | April | 651 |
| 49 | Indian Balsam Impatiens glandulifera | Flowering plants | August | 624 |
| 50 | Common Snipe Gallinago gallinago | Birds | October | 558 |
| 51 | Eurasian Jay Garrulus glandarius | Birds | October | 534 |
| 52 | Great Spotted Woodpecker Dendrocopos major | Birds | May | 528 |
| 53 | Eurasian Collared-Dove Streptopelia decaocto | Birds | May | 522 |
| 54 | Eurasian Sparrowhawk Accipiter nisus | Birds | April | 504 |
| 55 | Greater Whitethroat Sylvia communis | Birds | May | 472 |
| 56 | Eurasian Oystercatcher Haematopus ostralegus | Birds | May | 463 |
| 57 | Common Raven Corvus corax | Birds | April | 441 |
| 58 | Northern Wheatear Oenanthe oenanthe | Birds | April | 419 |
| 59 | Redwing Turdus iliacus | Birds | January | 403 |
| 60 | Little Owl Athene noctua | Birds | April | 403 |