Anthony Wetherhill: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 171 of 171 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 White-fronted Goose Anser albifrons 238 50.75 7 Mute Swan Cygnus olor 461 98.29 8 Whooper Swan Cygnus cygnus 310 66.10 9 Shelduck Tadorna tadorna 441 94.03 10 Mandarin Duck Aix galericulata 310 66.10 11 Shoveler Spatula clypeata 444 94.67 12 Gadwall Mareca strepera 442 94.24 13 Wigeon Mareca penelope 442 94.24 14 American Wigeon Mareca americana 68 14.50 15 Mallard Anas platyrhynchos 461 98.29 16 Pintail Anas acuta 390 83.16 17 Teal Anas crecca 445 94.88 18 Pochard Aythya ferina 426 90.83 19 Tufted Duck Aythya fuligula 457 97.44 20 Scaup Aythya marila 244 52.03 21 Eider Somateria mollissima 333 71.00 22 Long-tailed Duck Clangula hyemalis 205 43.71 23 Goldeneye Bucephala clangula 383 81.66 24 Goosander Mergus merganser 390 83.16 25 Red-breasted Merganser Mergus serrator 324 69.08 26 Red Grouse Lagopus lagopus 209 44.56 27 Ptarmigan Lagopus muta 21 4.48 28 Pheasant Phasianus colchicus 454 96.80 29 Quail Coturnix coturnix 87 18.55 30 Red-legged Partridge Alectoris rufa 400 85.29 31 Nightjar Caprimulgus europaeus 205 43.71 32 Swift Apus apus 430 91.68 33 Cuckoo Cuculus canorus 382 81.45 34 Rock Dove (Feral Pigeon) Columba livia 403 85.93 35 Stock Dove Columba oenas 416 88.70 36 Woodpigeon Columba palumbus 463 98.72 37 Collared Dove Streptopelia decaocto 453 96.59 38 Moorhen Gallinula chloropus 458 97.65 39 Coot Fulica atra 456 97.23 40 Little Grebe Tachybaptus ruficollis 443 94.46 41 Great Crested Grebe Podiceps cristatus 447 95.31 42 Oystercatcher Haematopus ostralegus 448 95.52 43 Golden Plover Pluvialis apricaria 389 82.94 44 Ringed Plover Charadrius hiaticula 399 85.07 45 Lapwing Vanellus vanellus 453 96.59 46 Curlew Numenius arquata 436 92.96 47 Woodcock Scolopax rusticola 291 62.05 48 Snipe Gallinago gallinago 413 88.06 49 Common Sandpiper Actitis hypoleucos 397 84.65 50 Green Sandpiper Tringa ochropus 351 74.84 51 Redshank Tringa totanus 434 92.54 52 Spotted Redshank Tringa erythropus 331 70.58 53 Turnstone Arenaria interpres 411 87.63 54 Knot Calidris canutus 349 74.41 55 Dunlin Calidris alpina 418 89.13 56 Arctic Tern Sterna paradisaea 290 61.83 57 Common Tern Sterna hirundo 407 86.78 58 Roseate Tern Sterna dougallii 143 30.49 59 Sandwich Tern Thalasseus sandvicensis 372 79.32 60 Kittiwake Rissa tridactyla 382 81.45 61 Black-headed Gull Chroicocephalus ridibundus 460 98.08 62 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 63 Common Gull Larus canus 418 89.13 64 Herring Gull Larus argentatus 457 97.44 65 Great Black-backed Gull Larus marinus 433 92.32 66 Lesser Black-backed Gull Larus fuscus 448 95.52 67 Long-tailed Skua Stercorarius longicaudus 87 18.55 68 Arctic Skua Stercorarius parasiticus 204 43.50 69 Great Skua Stercorarius skua 216 46.06 70 Puffin Fratercula arctica 305 65.03 71 Black Guillemot Cepphus grylle 206 43.92 72 Razorbill Alca torda 377 80.38 73 Common Guillemot Uria aalge 387 82.52 74 Red-throated Diver Gavia stellata 330 70.36 75 Great Northern Diver Gavia immer 287 61.19 76 Storm Petrel Hydrobates pelagicus 79 16.84 77 Fulmar Fulmarus glacialis 389 82.94 78 Manx Shearwater Puffinus puffinus 246 52.45 79 Gannet Morus bassanus 405 86.35 80 Cormorant Phalacrocorax carbo 457 97.44 81 Shag Gulosus aristotelis 370 78.89 82 Little Egret Egretta garzetta 444 94.67 83 Great White Egret Ardea alba 387 82.52 84 Grey Heron Ardea cinerea 454 96.80 85 Osprey Pandion haliaetus 294 62.69 86 Golden Eagle Aquila chrysaetos 81 17.27 87 Sparrowhawk Accipiter nisus 443 94.46 88 Goshawk Accipiter gentilis 195 41.58 89 Marsh Harrier Circus aeruginosus 406 86.57 90 Hen Harrier Circus cyaneus 227 48.40 91 Red Kite Milvus milvus 434 92.54 92 White-tailed Eagle Haliaeetus albicilla 114 24.31 93 Buzzard Buteo buteo 457 97.44 94 Barn Owl Tyto alba 371 79.10 95 Long-eared Owl Asio otus 113 24.09 96 Short-eared Owl Asio flammeus 262 55.86 97 Tawny Owl Strix aluco 364 77.61 98 Kingfisher Alcedo atthis 410 87.42 99 Great Spotted Woodpecker Dendrocopos major 443 94.46 100 Green Woodpecker Picus viridis 395 84.22 101 Kestrel Falco tinnunculus 453 96.59 102 Merlin Falco columbarius 275 58.64 103 Peregrine Falco peregrinus 421 89.77 104 Jay Garrulus glandarius 447 95.31 105 Magpie Pica pica 460 98.08 106 Chough Pyrrhocorax pyrrhocorax 194 41.36 107 Jackdaw Coloeus monedula 459 97.87 108 Rook Corvus frugilegus 453 96.59 109 Carrion Crow Corvus corone 460 98.08 110 Hooded Crow Corvus cornix 193 41.15 111 Raven Corvus corax 415 88.49 112 Coal Tit Periparus ater 446 95.10 113 Marsh Tit Poecile palustris 318 67.80 114 Willow Tit Poecile montanus 179 38.17 115 Blue Tit Cyanistes caeruleus 463 98.72 116 Great Tit Parus major 461 98.29 117 Bearded Tit Panurus biarmicus 299 63.75 118 Skylark Alauda arvensis 440 93.82 119 Sand Martin Riparia riparia 426 90.83 120 Swallow Hirundo rustica 437 93.18 121 House Martin Delichon urbicum 432 92.11 122 Cetti's Warbler Cettia cetti 387 82.52 123 Long-tailed Tit Aegithalos caudatus 453 96.59 124 Wood Warbler Phylloscopus sibilatrix 179 38.17 125 Willow Warbler Phylloscopus trochilus 415 88.49 126 Chiffchaff Phylloscopus collybita 441 94.03 127 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 128 Grasshopper Warbler Locustella naevia 264 56.29 129 Blackcap Sylvia atricapilla 437 93.18 130 Garden Warbler Sylvia borin 343 73.13 131 Whitethroat Curruca communis 421 89.77 132 Goldcrest Regulus regulus 427 91.04 133 Wren Troglodytes troglodytes 458 97.65 134 Nuthatch Sitta europaea 431 91.90 135 Treecreeper Certhia familiaris 420 89.55 136 Starling Sturnus vulgaris 458 97.65 137 Song Thrush Turdus philomelos 454 96.80 138 Mistle Thrush Turdus viscivorus 437 93.18 139 Redwing Turdus iliacus 443 94.46 140 Blackbird Turdus merula 462 98.51 141 Fieldfare Turdus pilaris 422 89.98 142 Ring Ouzel Turdus torquatus 261 55.65 143 Spotted Flycatcher Muscicapa striata 330 70.36 144 Robin Erithacus rubecula 462 98.51 145 Redstart Phoenicurus phoenicurus 335 71.43 146 Whinchat Saxicola rubetra 302 64.39 147 Stonechat Saxicola rubicola 432 92.11 148 Wheatear Oenanthe oenanthe 409 87.21 149 Dipper Cinclus cinclus 289 61.62 150 Tree Sparrow Passer montanus 328 69.94 151 House Sparrow Passer domesticus 458 97.65 152 Dunnock Prunella modularis 462 98.51 153 Grey Wagtail Motacilla cinerea 440 93.82 154 Pied Wagtail Motacilla alba 460 98.08 155 Meadow Pipit Anthus pratensis 434 92.54 156 Tree Pipit Anthus trivialis 307 65.46 157 Rock Pipit Anthus petrosus 372 79.32 158 Chaffinch Fringilla coelebs 457 97.44 159 Brambling Fringilla montifringilla 310 66.10 160 Bullfinch Pyrrhula pyrrhula 429 91.47 161 Greenfinch Chloris chloris 453 96.59 162 Twite Linaria flavirostris 178 37.95 163 Linnet Linaria cannabina 437 93.18 164 Lesser Redpoll Acanthis cabaret 341 72.71 165 Common Crossbill Loxia curvirostra 263 56.08 166 Goldfinch Carduelis carduelis 454 96.80 167 Siskin Spinus spinus 414 88.27 168 Snow Bunting Plectrophenax nivalis 254 54.16 169 Corn Bunting Emberiza calandra 289 61.62 170 Yellowhammer Emberiza citrinella 407 86.78 171 Reed Bunting Emberiza schoeniclus 439 93.60