Richard Cannell: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 148 of 148 total. Seq. Species Scientific Name Seen By Other Listers Other Listers (%) 1 Canada Goose Branta canadensis 460 98.08 2 Barnacle Goose Branta leucopsis 322 68.66 3 Greylag Goose Anser anser 449 95.74 4 Taiga Bean Goose Anser fabalis 36 7.68 5 Mute Swan Cygnus olor 461 98.29 6 Whooper Swan Cygnus cygnus 310 66.10 7 Egyptian Goose Alopochen aegyptiaca 370 78.89 8 Shelduck Tadorna tadorna 441 94.03 9 Garganey Spatula querquedula 282 60.13 10 Shoveler Spatula clypeata 444 94.67 11 Gadwall Mareca strepera 442 94.24 12 Wigeon Mareca penelope 442 94.24 13 Mallard Anas platyrhynchos 461 98.29 14 Pintail Anas acuta 390 83.16 15 Teal Anas crecca 445 94.88 16 Pochard Aythya ferina 426 90.83 17 Tufted Duck Aythya fuligula 457 97.44 18 Common Scoter Melanitta nigra 347 73.99 19 Goldeneye Bucephala clangula 383 81.66 20 Pheasant Phasianus colchicus 454 96.80 21 Red-legged Partridge Alectoris rufa 400 85.29 22 Swift Apus apus 430 91.68 23 Cuckoo Cuculus canorus 382 81.45 24 Stock Dove Columba oenas 416 88.70 25 Woodpigeon Columba palumbus 463 98.72 26 Collared Dove Streptopelia decaocto 453 96.59 27 Water Rail Rallus aquaticus 353 75.27 28 Moorhen Gallinula chloropus 458 97.65 29 Coot Fulica atra 456 97.23 30 Crane Grus grus 199 42.43 31 Little Grebe Tachybaptus ruficollis 443 94.46 32 Great Crested Grebe Podiceps cristatus 447 95.31 33 Slavonian Grebe Podiceps auritus 235 50.11 34 Stone-curlew Burhinus oedicnemus 168 35.82 35 Oystercatcher Haematopus ostralegus 448 95.52 36 Black-winged Stilt Himantopus himantopus 82 17.48 37 Avocet Recurvirostra avosetta 394 84.01 38 Grey Plover Pluvialis squatarola 343 73.13 39 Ringed Plover Charadrius hiaticula 399 85.07 40 Little Ringed Plover Charadrius dubius 360 76.76 41 Lapwing Vanellus vanellus 453 96.59 42 Eurasian Whimbrel Numenius phaeopus 349 74.41 43 Curlew Numenius arquata 436 92.96 44 Bar-tailed Godwit Limosa lapponica 368 78.46 45 Black-tailed Godwit Limosa limosa 411 87.63 46 Snipe Gallinago gallinago 413 88.06 47 Common Sandpiper Actitis hypoleucos 397 84.65 48 Green Sandpiper Tringa ochropus 351 74.84 49 Wood Sandpiper Tringa glareola 270 57.57 50 Redshank Tringa totanus 434 92.54 51 Spotted Redshank Tringa erythropus 331 70.58 52 Greenshank Tringa nebularia 382 81.45 53 Turnstone Arenaria interpres 411 87.63 54 Knot Calidris canutus 349 74.41 55 Ruff Calidris pugnax 369 78.68 56 Sanderling Calidris alba 369 78.68 57 Dunlin Calidris alpina 418 89.13 58 Purple Sandpiper Calidris maritima 265 56.50 59 Pectoral Sandpiper Calidris melanotos 177 37.74 60 Little Tern Sternula albifrons 286 60.98 61 Black Tern Chlidonias niger 167 35.61 62 Arctic Tern Sterna paradisaea 290 61.83 63 Common Tern Sterna hirundo 407 86.78 64 Roseate Tern Sterna dougallii 143 30.49 65 Sandwich Tern Thalasseus sandvicensis 372 79.32 66 Little Gull Hydrocoloeus minutus 281 59.91 67 Kittiwake Rissa tridactyla 382 81.45 68 Black-headed Gull Chroicocephalus ridibundus 460 98.08 69 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 70 Common Gull Larus canus 418 89.13 71 Caspian Gull Larus cachinnans 184 39.23 72 Herring Gull Larus argentatus 457 97.44 73 Yellow-legged Gull Larus michahellis 226 48.19 74 Great Black-backed Gull Larus marinus 433 92.32 75 Lesser Black-backed Gull Larus fuscus 448 95.52 76 Arctic Skua Stercorarius parasiticus 204 43.50 77 Little Auk Alle alle 98 20.90 78 Gannet Morus bassanus 405 86.35 79 Cormorant Phalacrocorax carbo 457 97.44 80 Glossy Ibis Plegadis falcinellus 213 45.42 81 Spoonbill Platalea leucorodia 335 71.43 82 Bittern Botaurus stellaris 294 62.69 83 Little Egret Egretta garzetta 444 94.67 84 Great White Egret Ardea alba 387 82.52 85 Grey Heron Ardea cinerea 454 96.80 86 Sparrowhawk Accipiter nisus 443 94.46 87 Marsh Harrier Circus aeruginosus 406 86.57 88 Red Kite Milvus milvus 434 92.54 89 White-tailed Eagle Haliaeetus albicilla 114 24.31 90 Buzzard Buteo buteo 457 97.44 91 Short-eared Owl Asio flammeus 262 55.86 92 Kingfisher Alcedo atthis 410 87.42 93 Great Spotted Woodpecker Dendrocopos major 443 94.46 94 Kestrel Falco tinnunculus 453 96.59 95 Hobby Falco subbuteo 347 73.99 96 Jay Garrulus glandarius 447 95.31 97 Magpie Pica pica 460 98.08 98 Jackdaw Coloeus monedula 459 97.87 99 Rook Corvus frugilegus 453 96.59 100 Carrion Crow Corvus corone 460 98.08 101 Coal Tit Periparus ater 446 95.10 102 Marsh Tit Poecile palustris 318 67.80 103 Blue Tit Cyanistes caeruleus 463 98.72 104 Great Tit Parus major 461 98.29 105 Bearded Tit Panurus biarmicus 299 63.75 106 Woodlark Lullula arborea 210 44.78 107 Skylark Alauda arvensis 440 93.82 108 Sand Martin Riparia riparia 426 90.83 109 Swallow Hirundo rustica 437 93.18 110 House Martin Delichon urbicum 432 92.11 111 Cetti's Warbler Cettia cetti 387 82.52 112 Long-tailed Tit Aegithalos caudatus 453 96.59 113 Chiffchaff Phylloscopus collybita 441 94.03 114 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 115 Reed Warbler Acrocephalus scirpaceus 399 85.07 116 Grasshopper Warbler Locustella naevia 264 56.29 117 Blackcap Sylvia atricapilla 437 93.18 118 Garden Warbler Sylvia borin 343 73.13 119 Lesser Whitethroat Curruca curruca 332 70.79 120 Whitethroat Curruca communis 421 89.77 121 Dartford Warbler Curruca undata 184 39.23 122 Wren Troglodytes troglodytes 458 97.65 123 Nuthatch Sitta europaea 431 91.90 124 Starling Sturnus vulgaris 458 97.65 125 Song Thrush Turdus philomelos 454 96.80 126 Redwing Turdus iliacus 443 94.46 127 Blackbird Turdus merula 462 98.51 128 Robin Erithacus rubecula 462 98.51 129 Nightingale Luscinia megarhynchos 158 33.69 130 Stonechat Saxicola rubicola 432 92.11 131 Wheatear Oenanthe oenanthe 409 87.21 132 House Sparrow Passer domesticus 458 97.65 133 Dunnock Prunella modularis 462 98.51 134 Yellow Wagtail Motacilla flava 368 78.46 135 Grey Wagtail Motacilla cinerea 440 93.82 136 Pied Wagtail Motacilla alba 460 98.08 137 Meadow Pipit Anthus pratensis 434 92.54 138 Chaffinch Fringilla coelebs 457 97.44 139 Brambling Fringilla montifringilla 310 66.10 140 Bullfinch Pyrrhula pyrrhula 429 91.47 141 Greenfinch Chloris chloris 453 96.59 142 Linnet Linaria cannabina 437 93.18 143 Common Redpoll Acanthis flammea 79 16.84 144 Goldfinch Carduelis carduelis 454 96.80 145 Serin Serinus serinus 27 5.76 146 Siskin Spinus spinus 414 88.27 147 Yellowhammer Emberiza citrinella 407 86.78 148 Reed Bunting Emberiza schoeniclus 439 93.60