Jonathan Bull: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 190 of 190 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 Bewick's Swan Cygnus columbianus 135 28.78 9 Whooper Swan Cygnus cygnus 310 66.10 10 Shelduck Tadorna tadorna 441 94.03 11 Mandarin Duck Aix galericulata 310 66.10 12 Garganey Spatula querquedula 282 60.13 13 Shoveler Spatula clypeata 444 94.67 14 Gadwall Mareca strepera 442 94.24 15 Wigeon Mareca penelope 442 94.24 16 Mallard Anas platyrhynchos 461 98.29 17 Pintail Anas acuta 390 83.16 18 Teal Anas crecca 445 94.88 19 Pochard Aythya ferina 426 90.83 20 Ring-necked Duck Aythya collaris 190 40.51 21 Tufted Duck Aythya fuligula 457 97.44 22 Scaup Aythya marila 244 52.03 23 Eider Somateria mollissima 333 71.00 24 Common Scoter Melanitta nigra 347 73.99 25 Long-tailed Duck Clangula hyemalis 205 43.71 26 Goldeneye Bucephala clangula 383 81.66 27 Goosander Mergus merganser 390 83.16 28 Red-breasted Merganser Mergus serrator 324 69.08 29 Pheasant Phasianus colchicus 454 96.80 30 Nightjar Caprimulgus europaeus 205 43.71 31 Swift Apus apus 430 91.68 32 Cuckoo Cuculus canorus 382 81.45 33 Rock Dove (Feral Pigeon) Columba livia 403 85.93 34 Stock Dove Columba oenas 416 88.70 35 Woodpigeon Columba palumbus 463 98.72 36 Collared Dove Streptopelia decaocto 453 96.59 37 Water Rail Rallus aquaticus 353 75.27 38 Moorhen Gallinula chloropus 458 97.65 39 Coot Fulica atra 456 97.23 40 Crane Grus grus 199 42.43 41 Little Grebe Tachybaptus ruficollis 443 94.46 42 Great Crested Grebe Podiceps cristatus 447 95.31 43 Black-necked Grebe Podiceps nigricollis 255 54.37 44 Oystercatcher Haematopus ostralegus 448 95.52 45 Black-winged Stilt Himantopus himantopus 82 17.48 46 Avocet Recurvirostra avosetta 394 84.01 47 Grey Plover Pluvialis squatarola 343 73.13 48 Golden Plover Pluvialis apricaria 389 82.94 49 Dotterel Eudromias morinellus 109 23.24 50 Ringed Plover Charadrius hiaticula 399 85.07 51 Little Ringed Plover Charadrius dubius 360 76.76 52 Lapwing Vanellus vanellus 453 96.59 53 White-tailed Plover Vanellus leucurus 200 42.64 54 Eurasian Whimbrel Numenius phaeopus 349 74.41 55 Curlew Numenius arquata 436 92.96 56 Bar-tailed Godwit Limosa lapponica 368 78.46 57 Black-tailed Godwit Limosa limosa 411 87.63 58 Long-billed Dowitcher Limnodromus scolopaceus 42 8.96 59 Common Sandpiper Actitis hypoleucos 397 84.65 60 Wood Sandpiper Tringa glareola 270 57.57 61 Redshank Tringa totanus 434 92.54 62 Spotted Redshank Tringa erythropus 331 70.58 63 Greenshank Tringa nebularia 382 81.45 64 Turnstone Arenaria interpres 411 87.63 65 Knot Calidris canutus 349 74.41 66 Curlew Sandpiper Calidris ferruginea 260 55.44 67 Sanderling Calidris alba 369 78.68 68 Dunlin Calidris alpina 418 89.13 69 Purple Sandpiper Calidris maritima 265 56.50 70 Little Stint Calidris minuta 290 61.83 71 Little Tern Sternula albifrons 286 60.98 72 Arctic Tern Sterna paradisaea 290 61.83 73 Common Tern Sterna hirundo 407 86.78 74 Sandwich Tern Thalasseus sandvicensis 372 79.32 75 Kittiwake Rissa tridactyla 382 81.45 76 Black-headed Gull Chroicocephalus ridibundus 460 98.08 77 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 78 Common Gull Larus canus 418 89.13 79 Herring Gull Larus argentatus 457 97.44 80 Yellow-legged Gull Larus michahellis 226 48.19 81 Great Black-backed Gull Larus marinus 433 92.32 82 Lesser Black-backed Gull Larus fuscus 448 95.52 83 Iceland Gull Larus glaucoides 158 33.69 84 Arctic Skua Stercorarius parasiticus 204 43.50 85 Puffin Fratercula arctica 305 65.03 86 Black Guillemot Cepphus grylle 206 43.92 87 Razorbill Alca torda 377 80.38 88 Common Guillemot Uria aalge 387 82.52 89 Red-throated Diver Gavia stellata 330 70.36 90 Pacific Diver Gavia pacifica 30 6.40 91 Great Northern Diver Gavia immer 287 61.19 92 Fulmar Fulmarus glacialis 389 82.94 93 Manx Shearwater Puffinus puffinus 246 52.45 94 Gannet Morus bassanus 405 86.35 95 Cormorant Phalacrocorax carbo 457 97.44 96 Shag Gulosus aristotelis 370 78.89 97 Glossy Ibis Plegadis falcinellus 213 45.42 98 Spoonbill Platalea leucorodia 335 71.43 99 Bittern Botaurus stellaris 294 62.69 100 Little Egret Egretta garzetta 444 94.67 101 Cattle Egret Bubulcus ibis 300 63.97 102 Great White Egret Ardea alba 387 82.52 103 Grey Heron Ardea cinerea 454 96.80 104 Osprey Pandion haliaetus 294 62.69 105 Sparrowhawk Accipiter nisus 443 94.46 106 Goshawk Accipiter gentilis 195 41.58 107 Marsh Harrier Circus aeruginosus 406 86.57 108 Red Kite Milvus milvus 434 92.54 109 Buzzard Buteo buteo 457 97.44 110 Tawny Owl Strix aluco 364 77.61 111 Hoopoe Upupa epops 92 19.62 112 Kingfisher Alcedo atthis 410 87.42 113 Great Spotted Woodpecker Dendrocopos major 443 94.46 114 Green Woodpecker Picus viridis 395 84.22 115 Kestrel Falco tinnunculus 453 96.59 116 Merlin Falco columbarius 275 58.64 117 Hobby Falco subbuteo 347 73.99 118 Peregrine Falco peregrinus 421 89.77 119 Jay Garrulus glandarius 447 95.31 120 Magpie Pica pica 460 98.08 121 Chough Pyrrhocorax pyrrhocorax 194 41.36 122 Jackdaw Coloeus monedula 459 97.87 123 Rook Corvus frugilegus 453 96.59 124 Carrion Crow Corvus corone 460 98.08 125 Raven Corvus corax 415 88.49 126 Coal Tit Periparus ater 446 95.10 127 Marsh Tit Poecile palustris 318 67.80 128 Blue Tit Cyanistes caeruleus 463 98.72 129 Great Tit Parus major 461 98.29 130 Bearded Tit Panurus biarmicus 299 63.75 131 Skylark Alauda arvensis 440 93.82 132 Sand Martin Riparia riparia 426 90.83 133 Swallow Hirundo rustica 437 93.18 134 House Martin Delichon urbicum 432 92.11 135 Cetti's Warbler Cettia cetti 387 82.52 136 Long-tailed Tit Aegithalos caudatus 453 96.59 137 Willow Warbler Phylloscopus trochilus 415 88.49 138 Chiffchaff Phylloscopus collybita 441 94.03 139 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 140 Reed Warbler Acrocephalus scirpaceus 399 85.07 141 River Warbler Locustella fluviatilis 128 27.29 142 Grasshopper Warbler Locustella naevia 264 56.29 143 Blackcap Sylvia atricapilla 437 93.18 144 Garden Warbler Sylvia borin 343 73.13 145 Whitethroat Curruca communis 421 89.77 146 Firecrest Regulus ignicapilla 198 42.22 147 Goldcrest Regulus regulus 427 91.04 148 Wren Troglodytes troglodytes 458 97.65 149 Nuthatch Sitta europaea 431 91.90 150 Treecreeper Certhia familiaris 420 89.55 151 Starling Sturnus vulgaris 458 97.65 152 Song Thrush Turdus philomelos 454 96.80 153 Mistle Thrush Turdus viscivorus 437 93.18 154 Redwing Turdus iliacus 443 94.46 155 Blackbird Turdus merula 462 98.51 156 Fieldfare Turdus pilaris 422 89.98 157 Ring Ouzel Turdus torquatus 261 55.65 158 Robin Erithacus rubecula 462 98.51 159 Bluethroat Luscinia svecica 83 17.70 160 Pied Flycatcher Ficedula hypoleuca 286 60.98 161 Black Redstart Phoenicurus ochruros 230 49.04 162 Redstart Phoenicurus phoenicurus 335 71.43 163 Whinchat Saxicola rubetra 302 64.39 164 Stonechat Saxicola rubicola 432 92.11 165 Wheatear Oenanthe oenanthe 409 87.21 166 Dipper Cinclus cinclus 289 61.62 167 Tree Sparrow Passer montanus 328 69.94 168 House Sparrow Passer domesticus 458 97.65 169 Dunnock Prunella modularis 462 98.51 170 Yellow Wagtail Motacilla flava 368 78.46 171 Grey Wagtail Motacilla cinerea 440 93.82 172 Pied Wagtail Motacilla alba 460 98.08 173 Meadow Pipit Anthus pratensis 434 92.54 174 Tree Pipit Anthus trivialis 307 65.46 175 Water Pipit Anthus spinoletta 155 33.05 176 Rock Pipit Anthus petrosus 372 79.32 177 Chaffinch Fringilla coelebs 457 97.44 178 Brambling Fringilla montifringilla 310 66.10 179 Hawfinch Coccothraustes coccothraustes 170 36.25 180 Bullfinch Pyrrhula pyrrhula 429 91.47 181 Greenfinch Chloris chloris 453 96.59 182 Linnet Linaria cannabina 437 93.18 183 Lesser Redpoll Acanthis cabaret 341 72.71 184 Goldfinch Carduelis carduelis 454 96.80 185 Siskin Spinus spinus 414 88.27 186 Lapland Bunting Calcarius lapponicus 78 16.63 187 Snow Bunting Plectrophenax nivalis 254 54.16 188 Corn Bunting Emberiza calandra 289 61.62 189 Yellowhammer Emberiza citrinella 407 86.78 190 Reed Bunting Emberiza schoeniclus 439 93.60