George Gay: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 241 of 241 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 Tundra Bean Goose Anser serrirostris 83 17.70 7 White-fronted Goose Anser albifrons 238 50.75 8 Mute Swan Cygnus olor 461 98.29 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 American Wigeon Mareca americana 68 14.50 17 Mallard Anas platyrhynchos 461 98.29 18 Pintail Anas acuta 390 83.16 19 Teal Anas crecca 445 94.88 20 Green-winged Teal Anas carolinensis 74 15.78 21 Red-crested Pochard Netta rufina 170 36.25 22 Pochard Aythya ferina 426 90.83 23 Ring-necked Duck Aythya collaris 190 40.51 24 Tufted Duck Aythya fuligula 457 97.44 25 Scaup Aythya marila 244 52.03 26 Lesser Scaup Aythya affinis 16 3.41 27 King Eider Somateria spectabilis 57 12.15 28 Eider Somateria mollissima 333 71.00 29 Surf Scoter Melanitta perspicillata 53 11.30 30 Velvet Scoter Melanitta fusca 171 36.46 31 White-winged Scoter Melanitta deglandi 20 4.26 32 Common Scoter Melanitta nigra 347 73.99 33 Long-tailed Duck Clangula hyemalis 205 43.71 34 Goldeneye Bucephala clangula 383 81.66 35 Goosander Mergus merganser 390 83.16 36 Red-breasted Merganser Mergus serrator 324 69.08 37 Red Grouse Lagopus lagopus 209 44.56 38 Black Grouse Lyrurus tetrix 102 21.75 39 Pheasant Phasianus colchicus 454 96.80 40 Quail Coturnix coturnix 87 18.55 41 Red-legged Partridge Alectoris rufa 400 85.29 42 Nightjar Caprimulgus europaeus 205 43.71 43 Swift Apus apus 430 91.68 44 Cuckoo Cuculus canorus 382 81.45 45 Rock Dove (Feral Pigeon) Columba livia 403 85.93 46 Stock Dove Columba oenas 416 88.70 47 Woodpigeon Columba palumbus 463 98.72 48 Turtle Dove Streptopelia turtur 172 36.67 49 Collared Dove Streptopelia decaocto 453 96.59 50 Water Rail Rallus aquaticus 353 75.27 51 Corncrake Crex crex 26 5.54 52 Moorhen Gallinula chloropus 458 97.65 53 Coot Fulica atra 456 97.23 54 Little Grebe Tachybaptus ruficollis 443 94.46 55 Slavonian Grebe Podiceps auritus 235 50.11 56 Oystercatcher Haematopus ostralegus 448 95.52 57 Grey Plover Pluvialis squatarola 343 73.13 58 Golden Plover Pluvialis apricaria 389 82.94 59 American Golden Plover Pluvialis dominica 73 15.57 60 Dotterel Eudromias morinellus 109 23.24 61 Ringed Plover Charadrius hiaticula 399 85.07 62 Lapwing Vanellus vanellus 453 96.59 63 Eurasian Whimbrel Numenius phaeopus 349 74.41 64 Curlew Numenius arquata 436 92.96 65 Bar-tailed Godwit Limosa lapponica 368 78.46 66 Black-tailed Godwit Limosa limosa 411 87.63 67 Jack Snipe Lymnocryptes minimus 232 49.47 68 Woodcock Scolopax rusticola 291 62.05 69 Snipe Gallinago gallinago 413 88.06 70 Grey Phalarope Phalaropus fulicarius 114 24.31 71 Red-necked Phalarope Phalaropus lobatus 65 13.86 72 Common Sandpiper Actitis hypoleucos 397 84.65 73 Green Sandpiper Tringa ochropus 351 74.84 74 Wood Sandpiper Tringa glareola 270 57.57 75 Redshank Tringa totanus 434 92.54 76 Lesser Yellowlegs Tringa flavipes 45 9.59 77 Greenshank Tringa nebularia 382 81.45 78 Turnstone Arenaria interpres 411 87.63 79 Knot Calidris canutus 349 74.41 80 Ruff Calidris pugnax 369 78.68 81 Curlew Sandpiper Calidris ferruginea 259 55.22 82 Buff-breasted Sandpiper Calidris subruficollis 34 7.25 83 Sanderling Calidris alba 369 78.68 84 Dunlin Calidris alpina 418 89.13 85 Purple Sandpiper Calidris maritima 265 56.50 86 Little Stint Calidris minuta 290 61.83 87 Pectoral Sandpiper Calidris melanotos 177 37.74 88 Little Tern Sternula albifrons 286 60.98 89 Arctic Tern Sterna paradisaea 290 61.83 90 Common Tern Sterna hirundo 407 86.78 91 Sandwich Tern Thalasseus sandvicensis 372 79.32 92 Little Gull Hydrocoloeus minutus 281 59.91 93 Kittiwake Rissa tridactyla 382 81.45 94 Sabine's Gull Xema sabini 38 8.10 95 Black-headed Gull Chroicocephalus ridibundus 460 98.08 96 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 97 Common Gull Larus canus 418 89.13 98 Ring-billed Gull Larus delawarensis 21 4.48 99 Caspian Gull Larus cachinnans 184 39.23 100 Herring Gull Larus argentatus 457 97.44 101 Yellow-legged Gull Larus michahellis 226 48.19 102 Great Black-backed Gull Larus marinus 433 92.32 103 Glaucous Gull Larus hyperboreus 88 18.76 104 Lesser Black-backed Gull Larus fuscus 448 95.52 105 Iceland Gull Larus glaucoides 158 33.69 106 Long-tailed Skua Stercorarius longicaudus 87 18.55 107 Arctic Skua Stercorarius parasiticus 204 43.50 108 Pomarine Skua Stercorarius pomarinus 81 17.27 109 Great Skua Stercorarius skua 216 46.06 110 Puffin Fratercula arctica 305 65.03 111 Black Guillemot Cepphus grylle 206 43.92 112 Razorbill Alca torda 377 80.38 113 Little Auk Alle alle 98 20.90 114 Common Guillemot Uria aalge 387 82.52 115 Red-throated Diver Gavia stellata 330 70.36 116 Black-throated Diver Gavia arctica 178 37.95 117 Great Northern Diver Gavia immer 287 61.19 118 White-billed Diver Gavia adamsii 48 10.23 119 Storm Petrel Hydrobates pelagicus 79 16.84 120 Leach's Petrel Hydrobates leucorhous 19 4.05 121 Fulmar Fulmarus glacialis 389 82.94 122 Sooty Shearwater Ardenna grisea 126 26.87 123 Manx Shearwater Puffinus puffinus 246 52.45 124 Gannet Morus bassanus 405 86.35 125 Cormorant Phalacrocorax carbo 457 97.44 126 Shag Gulosus aristotelis 370 78.89 127 Little Egret Egretta garzetta 444 94.67 128 Cattle Egret Bubulcus ibis 300 63.97 129 Grey Heron Ardea cinerea 454 96.80 130 Golden Eagle Aquila chrysaetos 81 17.27 131 Sparrowhawk Accipiter nisus 443 94.46 132 Marsh Harrier Circus aeruginosus 406 86.57 133 Hen Harrier Circus cyaneus 227 48.40 134 Red Kite Milvus milvus 434 92.54 135 Black Kite Milvus migrans 12 2.56 136 White-tailed Eagle Haliaeetus albicilla 114 24.31 137 Buzzard Buteo buteo 457 97.44 138 Long-eared Owl Asio otus 113 24.09 139 Short-eared Owl Asio flammeus 262 55.86 140 Tawny Owl Strix aluco 364 77.61 141 Kingfisher Alcedo atthis 410 87.42 142 Wryneck Jynx torquilla 108 23.03 143 Great Spotted Woodpecker Dendrocopos major 443 94.46 144 Kestrel Falco tinnunculus 453 96.59 145 Merlin Falco columbarius 275 58.64 146 Hobby Falco subbuteo 347 73.99 147 Peregrine Falco peregrinus 421 89.77 148 Golden Oriole Oriolus oriolus 57 12.15 149 Great Grey Shrike Lanius excubitor 67 14.29 150 Red-backed Shrike Lanius collurio 122 26.01 151 Jay Garrulus glandarius 447 95.31 152 Magpie Pica pica 460 98.08 153 Chough Pyrrhocorax pyrrhocorax 194 41.36 154 Jackdaw Coloeus monedula 459 97.87 155 Rook Corvus frugilegus 453 96.59 156 Carrion Crow Corvus corone 460 98.08 157 Hooded Crow Corvus cornix 193 41.15 158 Raven Corvus corax 415 88.49 159 Coal Tit Periparus ater 446 95.10 160 Crested Tit Lophophanes cristatus 63 13.43 161 Blue Tit Cyanistes caeruleus 463 98.72 162 Great Tit Parus major 461 98.29 163 Woodlark Lullula arborea 210 44.78 164 Skylark Alauda arvensis 440 93.82 165 Sand Martin Riparia riparia 426 90.83 166 Swallow Hirundo rustica 437 93.18 167 House Martin Delichon urbicum 432 92.11 168 Red-rumped Swallow Cecropis daurica 23 4.90 169 Long-tailed Tit Aegithalos caudatus 453 96.59 170 Wood Warbler Phylloscopus sibilatrix 179 38.17 171 Yellow-browed Warbler Phylloscopus inornatus 128 27.29 172 Willow Warbler Phylloscopus trochilus 415 88.49 173 Chiffchaff Phylloscopus collybita 441 94.03 174 Arctic Warbler Phylloscopus borealis 29 6.18 175 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 176 Blyth's Reed Warbler Acrocephalus dumetorum 43 9.17 177 Reed Warbler Acrocephalus scirpaceus 399 85.07 178 Marsh Warbler Acrocephalus palustris 52 11.09 179 Icterine Warbler Hippolais icterina 22 4.69 180 Lanceolated Warbler Locustella lanceolata 2 0.43 181 Grasshopper Warbler Locustella naevia 264 56.29 182 Blackcap Sylvia atricapilla 437 93.18 183 Garden Warbler Sylvia borin 343 73.13 184 Barred Warbler Curruca nisoria 63 13.43 185 Lesser Whitethroat Curruca curruca 332 70.79 186 Whitethroat Curruca communis 421 89.77 187 Firecrest Regulus ignicapilla 198 42.22 188 Goldcrest Regulus regulus 427 91.04 189 Wren Troglodytes troglodytes 458 97.65 190 Treecreeper Certhia familiaris 420 89.55 191 Rose-coloured Starling Pastor roseus 99 21.11 192 Starling Sturnus vulgaris 458 97.65 193 Varied Thrush Ixoreus naevius 14 2.99 194 Song Thrush Turdus philomelos 454 96.80 195 Mistle Thrush Turdus viscivorus 437 93.18 196 Redwing Turdus iliacus 443 94.46 197 Blackbird Turdus merula 462 98.51 198 Fieldfare Turdus pilaris 422 89.98 199 Ring Ouzel Turdus torquatus 261 55.65 200 Spotted Flycatcher Muscicapa striata 330 70.36 201 Robin Erithacus rubecula 462 98.51 202 Red-breasted Flycatcher Ficedula parva 68 14.50 203 Pied Flycatcher Ficedula hypoleuca 286 60.98 204 Collared Flycatcher Ficedula albicollis 1 0.21 205 Black Redstart Phoenicurus ochruros 230 49.04 206 Redstart Phoenicurus phoenicurus 335 71.43 207 Whinchat Saxicola rubetra 302 64.39 208 Stonechat Saxicola rubicola 432 92.11 209 Wheatear Oenanthe oenanthe 409 87.21 210 Dipper Cinclus cinclus 289 61.62 211 Tree Sparrow Passer montanus 328 69.94 212 House Sparrow Passer domesticus 458 97.65 213 Dunnock Prunella modularis 462 98.51 214 Yellow Wagtail Motacilla flava 368 78.46 215 Grey Wagtail Motacilla cinerea 440 93.82 216 Pied Wagtail Motacilla alba 460 98.08 217 Richard's Pipit Anthus richardi 23 4.90 218 Blyth's Pipit Anthus godlewskii 1 0.21 219 Meadow Pipit Anthus pratensis 434 92.54 220 Tree Pipit Anthus trivialis 307 65.46 221 Rock Pipit Anthus petrosus 372 79.32 222 Chaffinch Fringilla coelebs 457 97.44 223 Brambling Fringilla montifringilla 310 66.10 224 Hawfinch Coccothraustes coccothraustes 170 36.25 225 Bullfinch Pyrrhula pyrrhula 429 91.47 226 Common Rosefinch Carpodacus erythrinus 69 14.71 227 Greenfinch Chloris chloris 453 96.59 228 Twite Linaria flavirostris 178 37.95 229 Linnet Linaria cannabina 437 93.18 230 Common Redpoll Acanthis flammea 79 16.84 231 Lesser Redpoll Acanthis cabaret 341 72.71 232 Arctic Redpoll Acanthis hornemanni 14 2.99 233 Common Crossbill Loxia curvirostra 263 56.08 234 Goldfinch Carduelis carduelis 454 96.80 235 Siskin Spinus spinus 414 88.27 236 Lapland Bunting Calcarius lapponicus 78 16.63 237 Snow Bunting Plectrophenax nivalis 254 54.16 238 Yellowhammer Emberiza citrinella 407 86.78 239 Cirl Bunting Emberiza cirlus 103 21.96 240 Little Bunting Emberiza pusilla 110 23.45 241 Reed Bunting Emberiza schoeniclus 439 93.60