Ian Hughes: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 201 of 201 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 Egyptian Goose Alopochen aegyptiaca 370 78.89 9 Shelduck Tadorna tadorna 441 94.03 10 Mandarin Duck Aix galericulata 310 66.10 11 Garganey Spatula querquedula 282 60.13 12 Shoveler Spatula clypeata 444 94.67 13 Gadwall Mareca strepera 442 94.24 14 Wigeon Mareca penelope 442 94.24 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 Common Scoter Melanitta nigra 347 73.99 23 Long-tailed Duck Clangula hyemalis 205 43.71 24 Goldeneye Bucephala clangula 383 81.66 25 Smew Mergellus albellus 159 33.90 26 Goosander Mergus merganser 390 83.16 27 Red-breasted Merganser Mergus serrator 324 69.08 28 Red Grouse Lagopus lagopus 209 44.56 29 Black Grouse Lyrurus tetrix 102 21.75 30 Grey Partridge Perdix perdix 294 62.69 31 Pheasant Phasianus colchicus 454 96.80 32 Red-legged Partridge Alectoris rufa 400 85.29 33 Swift Apus apus 430 91.68 34 Cuckoo Cuculus canorus 382 81.45 35 Rock Dove (Feral Pigeon) Columba livia 403 85.93 36 Stock Dove Columba oenas 416 88.70 37 Woodpigeon Columba palumbus 463 98.72 38 Collared Dove Streptopelia decaocto 453 96.59 39 Water Rail Rallus aquaticus 353 75.27 40 Moorhen Gallinula chloropus 458 97.65 41 Coot Fulica atra 456 97.23 42 Crane Grus grus 199 42.43 43 Little Grebe Tachybaptus ruficollis 443 94.46 44 Great Crested Grebe Podiceps cristatus 447 95.31 45 Slavonian Grebe Podiceps auritus 235 50.11 46 Black-necked Grebe Podiceps nigricollis 255 54.37 47 Oystercatcher Haematopus ostralegus 448 95.52 48 Avocet Recurvirostra avosetta 394 84.01 49 Grey Plover Pluvialis squatarola 343 73.13 50 Golden Plover Pluvialis apricaria 389 82.94 51 American Golden Plover Pluvialis dominica 73 15.57 52 Ringed Plover Charadrius hiaticula 399 85.07 53 Little Ringed Plover Charadrius dubius 360 76.76 54 Lapwing Vanellus vanellus 453 96.59 55 Eurasian Whimbrel Numenius phaeopus 349 74.41 56 Curlew Numenius arquata 436 92.96 57 Bar-tailed Godwit Limosa lapponica 368 78.46 58 Black-tailed Godwit Limosa limosa 411 87.63 59 Long-billed Dowitcher Limnodromus scolopaceus 42 8.96 60 Jack Snipe Lymnocryptes minimus 232 49.47 61 Woodcock Scolopax rusticola 291 62.05 62 Snipe Gallinago gallinago 413 88.06 63 Wilson's Phalarope Phalaropus tricolor 42 8.96 64 Common Sandpiper Actitis hypoleucos 397 84.65 65 Green Sandpiper Tringa ochropus 351 74.84 66 Wood Sandpiper Tringa glareola 270 57.57 67 Redshank Tringa totanus 434 92.54 68 Spotted Redshank Tringa erythropus 331 70.58 69 Greenshank Tringa nebularia 382 81.45 70 Turnstone Arenaria interpres 411 87.63 71 Knot Calidris canutus 349 74.41 72 Ruff Calidris pugnax 369 78.68 73 Curlew Sandpiper Calidris ferruginea 260 55.44 74 Sanderling Calidris alba 369 78.68 75 Dunlin Calidris alpina 418 89.13 76 Purple Sandpiper Calidris maritima 265 56.50 77 Little Stint Calidris minuta 290 61.83 78 Little Tern Sternula albifrons 286 60.98 79 Arctic Tern Sterna paradisaea 290 61.83 80 Common Tern Sterna hirundo 407 86.78 81 Sandwich Tern Thalasseus sandvicensis 372 79.32 82 Little Gull Hydrocoloeus minutus 281 59.91 83 Kittiwake Rissa tridactyla 382 81.45 84 Black-headed Gull Chroicocephalus ridibundus 460 98.08 85 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 86 Common Gull Larus canus 418 89.13 87 Herring Gull Larus argentatus 457 97.44 88 Yellow-legged Gull Larus michahellis 226 48.19 89 Great Black-backed Gull Larus marinus 433 92.32 90 Lesser Black-backed Gull Larus fuscus 448 95.52 91 Puffin Fratercula arctica 305 65.03 92 Black Guillemot Cepphus grylle 206 43.92 93 Razorbill Alca torda 377 80.38 94 Common Guillemot Uria aalge 387 82.52 95 Red-throated Diver Gavia stellata 330 70.36 96 Great Northern Diver Gavia immer 287 61.19 97 Fulmar Fulmarus glacialis 389 82.94 98 Manx Shearwater Puffinus puffinus 246 52.45 99 Gannet Morus bassanus 405 86.35 100 Cormorant Phalacrocorax carbo 457 97.44 101 Shag Gulosus aristotelis 370 78.89 102 Glossy Ibis Plegadis falcinellus 213 45.42 103 Spoonbill Platalea leucorodia 335 71.43 104 Bittern Botaurus stellaris 294 62.69 105 Little Egret Egretta garzetta 444 94.67 106 Squacco Heron Ardeola ralloides 15 3.20 107 Cattle Egret Bubulcus ibis 300 63.97 108 Great White Egret Ardea alba 387 82.52 109 Grey Heron Ardea cinerea 454 96.80 110 Osprey Pandion haliaetus 294 62.69 111 Golden Eagle Aquila chrysaetos 81 17.27 112 Sparrowhawk Accipiter nisus 443 94.46 113 Marsh Harrier Circus aeruginosus 406 86.57 114 Hen Harrier Circus cyaneus 227 48.40 115 Red Kite Milvus milvus 434 92.54 116 White-tailed Eagle Haliaeetus albicilla 114 24.31 117 Buzzard Buteo buteo 457 97.44 118 Barn Owl Tyto alba 371 79.10 119 Little Owl Athene noctua 281 59.91 120 Short-eared Owl Asio flammeus 262 55.86 121 Tawny Owl Strix aluco 364 77.61 122 Hoopoe Upupa epops 92 19.62 123 Kingfisher Alcedo atthis 410 87.42 124 Great Spotted Woodpecker Dendrocopos major 443 94.46 125 Green Woodpecker Picus viridis 395 84.22 126 Kestrel Falco tinnunculus 453 96.59 127 Merlin Falco columbarius 275 58.64 128 Hobby Falco subbuteo 347 73.99 129 Peregrine Falco peregrinus 421 89.77 130 Ring-necked Parakeet Psittacula krameri 290 61.83 131 Red-backed Shrike Lanius collurio 122 26.01 132 Jay Garrulus glandarius 447 95.31 133 Magpie Pica pica 460 98.08 134 Chough Pyrrhocorax pyrrhocorax 194 41.36 135 Jackdaw Coloeus monedula 459 97.87 136 Rook Corvus frugilegus 453 96.59 137 Carrion Crow Corvus corone 460 98.08 138 Hooded Crow Corvus cornix 193 41.15 139 Raven Corvus corax 415 88.49 140 Coal Tit Periparus ater 446 95.10 141 Marsh Tit Poecile palustris 318 67.80 142 Willow Tit Poecile montanus 179 38.17 143 Blue Tit Cyanistes caeruleus 463 98.72 144 Great Tit Parus major 461 98.29 145 Skylark Alauda arvensis 440 93.82 146 Sand Martin Riparia riparia 426 90.83 147 Swallow Hirundo rustica 437 93.18 148 House Martin Delichon urbicum 432 92.11 149 Cetti's Warbler Cettia cetti 387 82.52 150 Long-tailed Tit Aegithalos caudatus 453 96.59 151 Willow Warbler Phylloscopus trochilus 415 88.49 152 Chiffchaff Phylloscopus collybita 441 94.03 153 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 154 Reed Warbler Acrocephalus scirpaceus 399 85.07 155 Grasshopper Warbler Locustella naevia 264 56.29 156 Blackcap Sylvia atricapilla 437 93.18 157 Garden Warbler Sylvia borin 343 73.13 158 Lesser Whitethroat Curruca curruca 332 70.79 159 Whitethroat Curruca communis 421 89.77 160 Goldcrest Regulus regulus 427 91.04 161 Wren Troglodytes troglodytes 458 97.65 162 Nuthatch Sitta europaea 431 91.90 163 Treecreeper Certhia familiaris 420 89.55 164 Starling Sturnus vulgaris 458 97.65 165 Song Thrush Turdus philomelos 454 96.80 166 Mistle Thrush Turdus viscivorus 437 93.18 167 Redwing Turdus iliacus 443 94.46 168 Blackbird Turdus merula 462 98.51 169 Fieldfare Turdus pilaris 422 89.98 170 Ring Ouzel Turdus torquatus 261 55.65 171 Spotted Flycatcher Muscicapa striata 330 70.36 172 Robin Erithacus rubecula 462 98.51 173 Pied Flycatcher Ficedula hypoleuca 286 60.98 174 Redstart Phoenicurus phoenicurus 335 71.43 175 Whinchat Saxicola rubetra 302 64.39 176 Stonechat Saxicola rubicola 432 92.11 177 Wheatear Oenanthe oenanthe 409 87.21 178 Dipper Cinclus cinclus 289 61.62 179 Tree Sparrow Passer montanus 328 69.94 180 House Sparrow Passer domesticus 458 97.65 181 Dunnock Prunella modularis 462 98.51 182 Yellow Wagtail Motacilla flava 368 78.46 183 Grey Wagtail Motacilla cinerea 440 93.82 184 Pied Wagtail Motacilla alba 460 98.08 185 Meadow Pipit Anthus pratensis 434 92.54 186 Tree Pipit Anthus trivialis 307 65.46 187 Rock Pipit Anthus petrosus 372 79.32 188 Chaffinch Fringilla coelebs 457 97.44 189 Brambling Fringilla montifringilla 310 66.10 190 Bullfinch Pyrrhula pyrrhula 429 91.47 191 Greenfinch Chloris chloris 453 96.59 192 Twite Linaria flavirostris 178 37.95 193 Linnet Linaria cannabina 437 93.18 194 Lesser Redpoll Acanthis cabaret 341 72.71 195 Common Crossbill Loxia curvirostra 263 56.08 196 Goldfinch Carduelis carduelis 454 96.80 197 Siskin Spinus spinus 414 88.27 198 Snow Bunting Plectrophenax nivalis 254 54.16 199 Corn Bunting Emberiza calandra 289 61.62 200 Yellowhammer Emberiza citrinella 407 86.78 201 Reed Bunting Emberiza schoeniclus 439 93.60