Gavin Scott: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 144 of 144 total. Seq. Species Scientific Name Seen By Other Listers Other Listers (%) 1 Brent Goose Branta bernicla 359 76.55 2 Canada Goose Branta canadensis 460 98.08 3 Barnacle Goose Branta leucopsis 322 68.66 4 Greylag Goose Anser anser 449 95.74 5 Pink-footed Goose Anser brachyrhynchus 357 76.12 6 Mute Swan Cygnus olor 461 98.29 7 Whooper Swan Cygnus cygnus 310 66.10 8 Shelduck Tadorna tadorna 441 94.03 9 Shoveler Spatula clypeata 444 94.67 10 Gadwall Mareca strepera 442 94.24 11 Wigeon Mareca penelope 442 94.24 12 Mallard Anas platyrhynchos 461 98.29 13 Teal Anas crecca 445 94.88 14 Pochard Aythya ferina 426 90.83 15 Tufted Duck Aythya fuligula 457 97.44 16 Eider Somateria mollissima 333 71.00 17 Long-tailed Duck Clangula hyemalis 205 43.71 18 Goldeneye Bucephala clangula 383 81.66 19 Goosander Mergus merganser 390 83.16 20 Red Grouse Lagopus lagopus 209 44.56 21 Pheasant Phasianus colchicus 454 96.80 22 Quail Coturnix coturnix 87 18.55 23 Red-legged Partridge Alectoris rufa 400 85.29 24 Swift Apus apus 430 91.68 25 Cuckoo Cuculus canorus 382 81.45 26 Rock Dove (Feral Pigeon) Columba livia 403 85.93 27 Stock Dove Columba oenas 416 88.70 28 Woodpigeon Columba palumbus 463 98.72 29 Collared Dove Streptopelia decaocto 453 96.59 30 Moorhen Gallinula chloropus 458 97.65 31 Coot Fulica atra 456 97.23 32 Little Grebe Tachybaptus ruficollis 443 94.46 33 Great Crested Grebe Podiceps cristatus 447 95.31 34 Oystercatcher Haematopus ostralegus 448 95.52 35 Avocet Recurvirostra avosetta 394 84.01 36 Ringed Plover Charadrius hiaticula 399 85.07 37 Lapwing Vanellus vanellus 453 96.59 38 Eurasian Whimbrel Numenius phaeopus 349 74.41 39 Curlew Numenius arquata 436 92.96 40 Bar-tailed Godwit Limosa lapponica 368 78.46 41 Black-tailed Godwit Limosa limosa 411 87.63 42 Snipe Gallinago gallinago 413 88.06 43 Common Sandpiper Actitis hypoleucos 397 84.65 44 Redshank Tringa totanus 434 92.54 45 Turnstone Arenaria interpres 411 87.63 46 Knot Calidris canutus 349 74.41 47 Ruff Calidris pugnax 369 78.68 48 Sanderling Calidris alba 369 78.68 49 Dunlin Calidris alpina 418 89.13 50 Purple Sandpiper Calidris maritima 265 56.50 51 Little Tern Sternula albifrons 286 60.98 52 Arctic Tern Sterna paradisaea 290 61.83 53 Common Tern Sterna hirundo 407 86.78 54 Sandwich Tern Thalasseus sandvicensis 372 79.32 55 Kittiwake Rissa tridactyla 382 81.45 56 Black-headed Gull Chroicocephalus ridibundus 460 98.08 57 Common Gull Larus canus 418 89.13 58 Herring Gull Larus argentatus 457 97.44 59 Great Black-backed Gull Larus marinus 433 92.32 60 Lesser Black-backed Gull Larus fuscus 448 95.52 61 Black Guillemot Cepphus grylle 206 43.92 62 Razorbill Alca torda 377 80.38 63 Common Guillemot Uria aalge 387 82.52 64 Great Northern Diver Gavia immer 287 61.19 65 Fulmar Fulmarus glacialis 389 82.94 66 Gannet Morus bassanus 405 86.35 67 Cormorant Phalacrocorax carbo 457 97.44 68 Shag Gulosus aristotelis 370 78.89 69 Spoonbill Platalea leucorodia 335 71.43 70 Little Egret Egretta garzetta 444 94.67 71 Grey Heron Ardea cinerea 454 96.80 72 Osprey Pandion haliaetus 294 62.69 73 Golden Eagle Aquila chrysaetos 81 17.27 74 Sparrowhawk Accipiter nisus 443 94.46 75 Marsh Harrier Circus aeruginosus 406 86.57 76 Red Kite Milvus milvus 434 92.54 77 Buzzard Buteo buteo 457 97.44 78 Barn Owl Tyto alba 371 79.10 79 Tawny Owl Strix aluco 364 77.61 80 Kingfisher Alcedo atthis 410 87.42 81 Great Spotted Woodpecker Dendrocopos major 443 94.46 82 Kestrel Falco tinnunculus 453 96.59 83 Merlin Falco columbarius 275 58.64 84 Peregrine Falco peregrinus 421 89.77 85 Jay Garrulus glandarius 447 95.31 86 Magpie Pica pica 460 98.08 87 Jackdaw Coloeus monedula 459 97.87 88 Rook Corvus frugilegus 453 96.59 89 Carrion Crow Corvus corone 460 98.08 90 Hooded Crow Corvus cornix 193 41.15 91 Raven Corvus corax 415 88.49 92 Coal Tit Periparus ater 446 95.10 93 Blue Tit Cyanistes caeruleus 463 98.72 94 Great Tit Parus major 461 98.29 95 Skylark Alauda arvensis 440 93.82 96 Sand Martin Riparia riparia 426 90.83 97 Swallow Hirundo rustica 437 93.18 98 House Martin Delichon urbicum 432 92.11 99 Long-tailed Tit Aegithalos caudatus 453 96.59 100 Wood Warbler Phylloscopus sibilatrix 179 38.17 101 Willow Warbler Phylloscopus trochilus 415 88.49 102 Chiffchaff Phylloscopus collybita 441 94.03 103 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 104 Reed Warbler Acrocephalus scirpaceus 399 85.07 105 Blackcap Sylvia atricapilla 437 93.18 106 Garden Warbler Sylvia borin 343 73.13 107 Whitethroat Curruca communis 421 89.77 108 Goldcrest Regulus regulus 427 91.04 109 Wren Troglodytes troglodytes 458 97.65 110 Nuthatch Sitta europaea 431 91.90 111 Treecreeper Certhia familiaris 420 89.55 112 Starling Sturnus vulgaris 458 97.65 113 Song Thrush Turdus philomelos 454 96.80 114 Mistle Thrush Turdus viscivorus 437 93.18 115 Redwing Turdus iliacus 443 94.46 116 Blackbird Turdus merula 462 98.51 117 Fieldfare Turdus pilaris 422 89.98 118 Spotted Flycatcher Muscicapa striata 330 70.36 119 Robin Erithacus rubecula 462 98.51 120 Redstart Phoenicurus phoenicurus 335 71.43 121 Whinchat Saxicola rubetra 302 64.39 122 Stonechat Saxicola rubicola 432 92.11 123 Wheatear Oenanthe oenanthe 409 87.21 124 Dipper Cinclus cinclus 289 61.62 125 Tree Sparrow Passer montanus 328 69.94 126 House Sparrow Passer domesticus 458 97.65 127 Dunnock Prunella modularis 462 98.51 128 Yellow Wagtail Motacilla flava 368 78.46 129 Grey Wagtail Motacilla cinerea 440 93.82 130 Pied Wagtail Motacilla alba 460 98.08 131 Meadow Pipit Anthus pratensis 434 92.54 132 Tree Pipit Anthus trivialis 307 65.46 133 Chaffinch Fringilla coelebs 457 97.44 134 Bullfinch Pyrrhula pyrrhula 429 91.47 135 Greenfinch Chloris chloris 453 96.59 136 Twite Linaria flavirostris 178 37.95 137 Linnet Linaria cannabina 437 93.18 138 Lesser Redpoll Acanthis cabaret 341 72.71 139 Common Crossbill Loxia curvirostra 263 56.08 140 Goldfinch Carduelis carduelis 454 96.80 141 Siskin Spinus spinus 414 88.27 142 Corn Bunting Emberiza calandra 289 61.62 143 Yellowhammer Emberiza citrinella 407 86.78 144 Reed Bunting Emberiza schoeniclus 439 93.60