John Douglas: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 220 of 220 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 Ross's Goose Anser rossii 11 2.35 5 Snow Goose Anser caerulescens 32 6.82 6 Greylag Goose Anser anser 449 95.74 7 Taiga Bean Goose Anser fabalis 36 7.68 8 Pink-footed Goose Anser brachyrhynchus 357 76.12 9 White-fronted Goose Anser albifrons 238 50.75 10 Mute Swan Cygnus olor 461 98.29 11 Bewick's Swan Cygnus columbianus 135 28.78 12 Whooper Swan Cygnus cygnus 310 66.10 13 Egyptian Goose Alopochen aegyptiaca 370 78.89 14 Shelduck Tadorna tadorna 441 94.03 15 Mandarin Duck Aix galericulata 310 66.10 16 Shoveler Spatula clypeata 444 94.67 17 Gadwall Mareca strepera 442 94.24 18 Wigeon Mareca penelope 442 94.24 19 American Wigeon Mareca americana 68 14.50 20 Mallard Anas platyrhynchos 461 98.29 21 Pintail Anas acuta 390 83.16 22 Teal Anas crecca 445 94.88 23 Pochard Aythya ferina 426 90.83 24 Ring-necked Duck Aythya collaris 190 40.51 25 Tufted Duck Aythya fuligula 457 97.44 26 Scaup Aythya marila 244 52.03 27 Eider Somateria mollissima 333 71.00 28 Velvet Scoter Melanitta fusca 171 36.46 29 Common Scoter Melanitta nigra 347 73.99 30 Long-tailed Duck Clangula hyemalis 205 43.71 31 Goldeneye Bucephala clangula 383 81.66 32 Hooded Merganser Lophodytes cucullatus 13 2.77 33 Goosander Mergus merganser 390 83.16 34 Red-breasted Merganser Mergus serrator 324 69.08 35 Red Grouse Lagopus lagopus 209 44.56 36 Capercaillie Tetrao urogallus 18 3.84 37 Black Grouse Lyrurus tetrix 102 21.75 38 Grey Partridge Perdix perdix 294 62.69 39 Pheasant Phasianus colchicus 454 96.80 40 Red-legged Partridge Alectoris rufa 400 85.29 41 Swift Apus apus 430 91.68 42 Great Bustard Otis tarda 17 3.62 43 Cuckoo Cuculus canorus 382 81.45 44 Rock Dove (Feral Pigeon) Columba livia 403 85.93 45 Stock Dove Columba oenas 416 88.70 46 Woodpigeon Columba palumbus 463 98.72 47 Collared Dove Streptopelia decaocto 453 96.59 48 Water Rail Rallus aquaticus 353 75.27 49 Moorhen Gallinula chloropus 458 97.65 50 Coot Fulica atra 456 97.23 51 Crane Grus grus 199 42.43 52 Little Grebe Tachybaptus ruficollis 443 94.46 53 Red-necked Grebe Podiceps grisegena 141 30.06 54 Great Crested Grebe Podiceps cristatus 447 95.31 55 Slavonian Grebe Podiceps auritus 235 50.11 56 Black-necked Grebe Podiceps nigricollis 255 54.37 57 Oystercatcher Haematopus ostralegus 448 95.52 58 Avocet Recurvirostra avosetta 394 84.01 59 Golden Plover Pluvialis apricaria 389 82.94 60 Pacific Golden Plover Pluvialis fulva 133 28.36 61 Ringed Plover Charadrius hiaticula 399 85.07 62 Little Ringed Plover Charadrius dubius 360 76.76 63 Lapwing Vanellus vanellus 453 96.59 64 White-tailed Plover Vanellus leucurus 200 42.64 65 Eurasian Whimbrel Numenius phaeopus 349 74.41 66 Curlew Numenius arquata 436 92.96 67 Bar-tailed Godwit Limosa lapponica 368 78.46 68 Black-tailed Godwit Limosa limosa 411 87.63 69 Jack Snipe Lymnocryptes minimus 232 49.47 70 Snipe Gallinago gallinago 413 88.06 71 Wilson's Phalarope Phalaropus tricolor 42 8.96 72 Common Sandpiper Actitis hypoleucos 397 84.65 73 Green Sandpiper Tringa ochropus 351 74.84 74 Redshank Tringa totanus 434 92.54 75 Spotted Redshank Tringa erythropus 331 70.58 76 Greenshank Tringa nebularia 382 81.45 77 Turnstone Arenaria interpres 411 87.63 78 Knot Calidris canutus 349 74.41 79 Ruff Calidris pugnax 369 78.68 80 Curlew Sandpiper Calidris ferruginea 259 55.22 81 Long-toed Stint Calidris subminuta 128 27.29 82 Sanderling Calidris alba 369 78.68 83 Dunlin Calidris alpina 418 89.13 84 Purple Sandpiper Calidris maritima 265 56.50 85 Baird's Sandpiper Calidris bairdii 20 4.26 86 Little Stint Calidris minuta 290 61.83 87 Arctic Tern Sterna paradisaea 290 61.83 88 Common Tern Sterna hirundo 407 86.78 89 Sandwich Tern Thalasseus sandvicensis 372 79.32 90 Kittiwake Rissa tridactyla 382 81.45 91 Black-headed Gull Chroicocephalus ridibundus 460 98.08 92 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 93 Common Gull Larus canus 418 89.13 94 Caspian Gull Larus cachinnans 184 39.23 95 Herring Gull Larus argentatus 457 97.44 96 Yellow-legged Gull Larus michahellis 226 48.19 97 Great Black-backed Gull Larus marinus 433 92.32 98 Lesser Black-backed Gull Larus fuscus 448 95.52 99 Puffin Fratercula arctica 305 65.03 100 Razorbill Alca torda 377 80.38 101 Common Guillemot Uria aalge 387 82.52 102 Red-throated Diver Gavia stellata 330 70.36 103 Black-throated Diver Gavia arctica 178 37.95 104 Great Northern Diver Gavia immer 287 61.19 105 Black-browed Albatross Thalassarche melanophris 200 42.64 106 Fulmar Fulmarus glacialis 389 82.94 107 Gannet Morus bassanus 405 86.35 108 Cormorant Phalacrocorax carbo 457 97.44 109 Shag Gulosus aristotelis 370 78.89 110 Spoonbill Platalea leucorodia 335 71.43 111 Bittern Botaurus stellaris 294 62.69 112 Little Egret Egretta garzetta 444 94.67 113 Cattle Egret Bubulcus ibis 300 63.97 114 Great White Egret Ardea alba 387 82.52 115 Grey Heron Ardea cinerea 454 96.80 116 Honey-buzzard Pernis apivorus 83 17.70 117 Golden Eagle Aquila chrysaetos 81 17.27 118 Sparrowhawk Accipiter nisus 443 94.46 119 Goshawk Accipiter gentilis 195 41.58 120 Marsh Harrier Circus aeruginosus 406 86.57 121 Hen Harrier Circus cyaneus 227 48.40 122 Red Kite Milvus milvus 434 92.54 123 Buzzard Buteo buteo 457 97.44 124 Barn Owl Tyto alba 371 79.10 125 Little Owl Athene noctua 281 59.91 126 Short-eared Owl Asio flammeus 262 55.86 127 Tawny Owl Strix aluco 364 77.61 128 Kingfisher Alcedo atthis 410 87.42 129 Belted Kingfisher Megaceryle alcyon 93 19.83 130 Bee-eater Merops apiaster 54 11.51 131 Lesser Spotted Woodpecker Dryobates minor 117 24.95 132 Great Spotted Woodpecker Dendrocopos major 443 94.46 133 Green Woodpecker Picus viridis 395 84.22 134 Kestrel Falco tinnunculus 453 96.59 135 Merlin Falco columbarius 275 58.64 136 Hobby Falco subbuteo 347 73.99 137 Peregrine Falco peregrinus 421 89.77 138 Ring-necked Parakeet Psittacula krameri 290 61.83 139 Lesser Grey Shrike Lanius minor 28 5.97 140 Red-backed Shrike Lanius collurio 122 26.01 141 Jay Garrulus glandarius 447 95.31 142 Magpie Pica pica 460 98.08 143 Chough Pyrrhocorax pyrrhocorax 194 41.36 144 Jackdaw Coloeus monedula 459 97.87 145 Rook Corvus frugilegus 453 96.59 146 Carrion Crow Corvus corone 460 98.08 147 Hooded Crow Corvus cornix 193 41.15 148 Raven Corvus corax 415 88.49 149 Coal Tit Periparus ater 446 95.10 150 Crested Tit Lophophanes cristatus 63 13.43 151 Marsh Tit Poecile palustris 318 67.80 152 Willow Tit Poecile montanus 179 38.17 153 Blue Tit Cyanistes caeruleus 463 98.72 154 Great Tit Parus major 461 98.29 155 Bearded Tit Panurus biarmicus 299 63.75 156 Woodlark Lullula arborea 210 44.78 157 Skylark Alauda arvensis 440 93.82 158 Sand Martin Riparia riparia 426 90.83 159 Swallow Hirundo rustica 437 93.18 160 House Martin Delichon urbicum 432 92.11 161 Cetti's Warbler Cettia cetti 387 82.52 162 Long-tailed Tit Aegithalos caudatus 453 96.59 163 Wood Warbler Phylloscopus sibilatrix 179 38.17 164 Willow Warbler Phylloscopus trochilus 415 88.49 165 Chiffchaff Phylloscopus collybita 441 94.03 166 Arctic Warbler Phylloscopus borealis 29 6.18 167 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 168 Reed Warbler Acrocephalus scirpaceus 399 85.07 169 Savi's Warbler Locustella luscinioides 60 12.79 170 Grasshopper Warbler Locustella naevia 264 56.29 171 Blackcap Sylvia atricapilla 437 93.18 172 Garden Warbler Sylvia borin 343 73.13 173 Eastern Subalpine Warbler Curruca cantillans 49 10.45 174 Whitethroat Curruca communis 421 89.77 175 Goldcrest Regulus regulus 427 91.04 176 Wren Troglodytes troglodytes 458 97.65 177 Nuthatch Sitta europaea 431 91.90 178 Treecreeper Certhia familiaris 420 89.55 179 Northern Mockingbird Mimus polyglottos 132 28.14 180 Starling Sturnus vulgaris 458 97.65 181 Song Thrush Turdus philomelos 454 96.80 182 Mistle Thrush Turdus viscivorus 437 93.18 183 Redwing Turdus iliacus 443 94.46 184 Blackbird Turdus merula 462 98.51 185 Fieldfare Turdus pilaris 422 89.98 186 Robin Erithacus rubecula 462 98.51 187 Bluethroat Luscinia svecica 83 17.70 188 Taiga Flycatcher Ficedula albicilla 47 10.02 189 Pied Flycatcher Ficedula hypoleuca 286 60.98 190 Red-flanked Bluetail Tarsiger cyanurus 52 11.09 191 Redstart Phoenicurus phoenicurus 335 71.43 192 Stonechat Saxicola rubicola 432 92.11 193 Wheatear Oenanthe oenanthe 409 87.21 194 Pied Wheatear Oenanthe pleschanka 21 4.48 195 Dipper Cinclus cinclus 289 61.62 196 Tree Sparrow Passer montanus 328 69.94 197 House Sparrow Passer domesticus 458 97.65 198 Dunnock Prunella modularis 462 98.51 199 Yellow Wagtail Motacilla flava 368 78.46 200 Grey Wagtail Motacilla cinerea 440 93.82 201 Pied Wagtail Motacilla alba 460 98.08 202 Meadow Pipit Anthus pratensis 434 92.54 203 Tree Pipit Anthus trivialis 307 65.46 204 Rock Pipit Anthus petrosus 372 79.32 205 Chaffinch Fringilla coelebs 457 97.44 206 Brambling Fringilla montifringilla 310 66.10 207 Bullfinch Pyrrhula pyrrhula 429 91.47 208 Greenfinch Chloris chloris 453 96.59 209 Linnet Linaria cannabina 437 93.18 210 Lesser Redpoll Acanthis cabaret 341 72.71 211 Scottish Crossbill Loxia scotica 21 4.48 212 Common Crossbill Loxia curvirostra 263 56.08 213 Two-barred Crossbill Loxia leucoptera 22 4.69 214 Goldfinch Carduelis carduelis 454 96.80 215 Siskin Spinus spinus 414 88.27 216 Snow Bunting Plectrophenax nivalis 254 54.16 217 Corn Bunting Emberiza calandra 289 61.62 218 Yellowhammer Emberiza citrinella 407 86.78 219 Cirl Bunting Emberiza cirlus 103 21.96 220 Reed Bunting Emberiza schoeniclus 439 93.60