Tony Barter: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 256 of 256 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 Mute Swan Cygnus olor 461 98.29 8 Whooper Swan Cygnus cygnus 310 66.10 9 Egyptian Goose Alopochen aegyptiaca 370 78.89 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 Pochard Aythya ferina 426 90.83 22 Ferruginous Duck Aythya nyroca 44 9.38 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 King Eider Somateria spectabilis 57 12.15 27 Eider Somateria mollissima 333 71.00 28 Common Scoter Melanitta nigra 347 73.99 29 Long-tailed Duck Clangula hyemalis 205 43.71 30 Bufflehead Bucephala albeola 22 4.69 31 Goldeneye Bucephala clangula 383 81.66 32 Goosander Mergus merganser 390 83.16 33 Red-breasted Merganser Mergus serrator 324 69.08 34 Ruddy Duck Oxyura jamaicensis 35 7.46 35 Red Grouse Lagopus lagopus 209 44.56 36 Grey Partridge Perdix perdix 294 62.69 37 Pheasant Phasianus colchicus 454 96.80 38 Red-legged Partridge Alectoris rufa 400 85.29 39 Swift Apus apus 430 91.68 40 Cuckoo Cuculus canorus 382 81.45 41 Rock Dove (Feral Pigeon) Columba livia 403 85.93 42 Stock Dove Columba oenas 416 88.70 43 Woodpigeon Columba palumbus 463 98.72 44 Turtle Dove Streptopelia turtur 172 36.67 45 Collared Dove Streptopelia decaocto 453 96.59 46 Water Rail Rallus aquaticus 353 75.27 47 Moorhen Gallinula chloropus 458 97.65 48 Coot Fulica atra 456 97.23 49 Crane Grus grus 199 42.43 50 Little Grebe Tachybaptus ruficollis 443 94.46 51 Red-necked Grebe Podiceps grisegena 141 30.06 52 Great Crested Grebe Podiceps cristatus 447 95.31 53 Slavonian Grebe Podiceps auritus 235 50.11 54 Black-necked Grebe Podiceps nigricollis 255 54.37 55 Stone-curlew Burhinus oedicnemus 168 35.82 56 Oystercatcher Haematopus ostralegus 448 95.52 57 Avocet Recurvirostra avosetta 394 84.01 58 Grey Plover Pluvialis squatarola 343 73.13 59 Golden Plover Pluvialis apricaria 389 82.94 60 Pacific Golden Plover Pluvialis fulva 133 28.36 61 Dotterel Eudromias morinellus 109 23.24 62 Ringed Plover Charadrius hiaticula 399 85.07 63 Little Ringed Plover Charadrius dubius 360 76.76 64 Lapwing Vanellus vanellus 453 96.59 65 White-tailed Plover Vanellus leucurus 200 42.64 66 Eurasian Whimbrel Numenius phaeopus 349 74.41 67 Curlew Numenius arquata 436 92.96 68 Bar-tailed Godwit Limosa lapponica 368 78.46 69 Black-tailed Godwit Limosa limosa 411 87.63 70 Jack Snipe Lymnocryptes minimus 232 49.47 71 Snipe Gallinago gallinago 413 88.06 72 Wilson's Phalarope Phalaropus tricolor 42 8.96 73 Common Sandpiper Actitis hypoleucos 397 84.65 74 Green Sandpiper Tringa ochropus 351 74.84 75 Wood Sandpiper Tringa glareola 270 57.57 76 Redshank Tringa totanus 434 92.54 77 Spotted Redshank Tringa erythropus 331 70.58 78 Greenshank Tringa nebularia 382 81.45 79 Turnstone Arenaria interpres 411 87.63 80 Knot Calidris canutus 349 74.41 81 Ruff Calidris pugnax 369 78.68 82 Curlew Sandpiper Calidris ferruginea 260 55.44 83 Temminck's Stint Calidris temminckii 89 18.98 84 Long-toed Stint Calidris subminuta 128 27.29 85 Sanderling Calidris alba 369 78.68 86 Dunlin Calidris alpina 418 89.13 87 Purple Sandpiper Calidris maritima 265 56.50 88 Little Stint Calidris minuta 290 61.83 89 Pectoral Sandpiper Calidris melanotos 177 37.74 90 Western Sandpiper Calidris mauri 59 12.58 91 Semipalmated Sandpiper Calidris pusilla 38 8.10 92 Little Tern Sternula albifrons 286 60.98 93 Caspian Tern Hydroprogne caspia 54 11.51 94 Black Tern Chlidonias niger 167 35.61 95 White-winged Black Tern Chlidonias leucopterus 12 2.56 96 Arctic Tern Sterna paradisaea 290 61.83 97 Common Tern Sterna hirundo 407 86.78 98 Roseate Tern Sterna dougallii 143 30.49 99 Sandwich Tern Thalasseus sandvicensis 372 79.32 100 Elegant Tern Thalasseus elegans 84 17.91 101 Little Gull Hydrocoloeus minutus 281 59.91 102 Kittiwake Rissa tridactyla 382 81.45 103 Bonaparte's Gull Chroicocephalus philadelphia 107 22.81 104 Black-headed Gull Chroicocephalus ridibundus 460 98.08 105 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 106 Common Gull Larus canus 418 89.13 107 Herring Gull Larus argentatus 457 97.44 108 Yellow-legged Gull Larus michahellis 226 48.19 109 Great Black-backed Gull Larus marinus 433 92.32 110 Lesser Black-backed Gull Larus fuscus 448 95.52 111 American Herring Gull Larus smithsonianus 51 10.87 112 Iceland Gull Larus glaucoides 158 33.69 113 Long-tailed Skua Stercorarius longicaudus 87 18.55 114 Arctic Skua Stercorarius parasiticus 204 43.50 115 Puffin Fratercula arctica 305 65.03 116 Black Guillemot Cepphus grylle 206 43.92 117 Razorbill Alca torda 377 80.38 118 Common Guillemot Uria aalge 387 82.52 119 Red-throated Diver Gavia stellata 330 70.36 120 Great Northern Diver Gavia immer 287 61.19 121 White-billed Diver Gavia adamsii 48 10.23 122 Black-browed Albatross Thalassarche melanophris 200 42.64 123 Fulmar Fulmarus glacialis 389 82.94 124 Black Stork Ciconia nigra 82 17.48 125 Gannet Morus bassanus 405 86.35 126 Cormorant Phalacrocorax carbo 457 97.44 127 Shag Gulosus aristotelis 370 78.89 128 Glossy Ibis Plegadis falcinellus 213 45.42 129 Spoonbill Platalea leucorodia 335 71.43 130 Bittern Botaurus stellaris 294 62.69 131 Little Egret Egretta garzetta 444 94.67 132 Cattle Egret Bubulcus ibis 300 63.97 133 Great White Egret Ardea alba 387 82.52 134 Grey Heron Ardea cinerea 454 96.80 135 Honey-buzzard Pernis apivorus 83 17.70 136 Sparrowhawk Accipiter nisus 443 94.46 137 Goshawk Accipiter gentilis 195 41.58 138 Marsh Harrier Circus aeruginosus 406 86.57 139 Red Kite Milvus milvus 434 92.54 140 Buzzard Buteo buteo 457 97.44 141 Barn Owl Tyto alba 371 79.10 142 Short-eared Owl Asio flammeus 262 55.86 143 Tawny Owl Strix aluco 364 77.61 144 Hoopoe Upupa epops 92 19.62 145 Roller Coracias garrulus 113 24.09 146 Kingfisher Alcedo atthis 410 87.42 147 Belted Kingfisher Megaceryle alcyon 93 19.83 148 Wryneck Jynx torquilla 108 23.03 149 Lesser Spotted Woodpecker Dryobates minor 117 24.95 150 Great Spotted Woodpecker Dendrocopos major 443 94.46 151 Green Woodpecker Picus viridis 395 84.22 152 Kestrel Falco tinnunculus 453 96.59 153 Merlin Falco columbarius 275 58.64 154 Hobby Falco subbuteo 347 73.99 155 Peregrine Falco peregrinus 421 89.77 156 Ring-necked Parakeet Psittacula krameri 290 61.83 157 Red-eyed Vireo Vireo olivaceus 26 5.54 158 Woodchat Shrike Lanius senator 99 21.11 159 Red-backed Shrike Lanius collurio 122 26.01 160 Jay Garrulus glandarius 447 95.31 161 Magpie Pica pica 460 98.08 162 Chough Pyrrhocorax pyrrhocorax 194 41.36 163 Jackdaw Coloeus monedula 459 97.87 164 Rook Corvus frugilegus 453 96.59 165 Carrion Crow Corvus corone 460 98.08 166 Hooded Crow Corvus cornix 193 41.15 167 Raven Corvus corax 415 88.49 168 Coal Tit Periparus ater 446 95.10 169 Marsh Tit Poecile palustris 318 67.80 170 Willow Tit Poecile montanus 179 38.17 171 Blue Tit Cyanistes caeruleus 463 98.72 172 Great Tit Parus major 461 98.29 173 Bearded Tit Panurus biarmicus 299 63.75 174 Woodlark Lullula arborea 210 44.78 175 Skylark Alauda arvensis 440 93.82 176 Shore Lark Eremophila alpestris 122 26.01 177 Short-toed Lark Calandrella brachydactyla 37 7.89 178 Sand Martin Riparia riparia 426 90.83 179 Swallow Hirundo rustica 437 93.18 180 House Martin Delichon urbicum 432 92.11 181 Cetti's Warbler Cettia cetti 387 82.52 182 Long-tailed Tit Aegithalos caudatus 453 96.59 183 Wood Warbler Phylloscopus sibilatrix 179 38.17 184 Western Bonelli's Warbler Phylloscopus bonelli 38 8.10 185 Yellow-browed Warbler Phylloscopus inornatus 128 27.29 186 Willow Warbler Phylloscopus trochilus 415 88.49 187 Chiffchaff Phylloscopus collybita 441 94.03 188 Green Warbler Phylloscopus nitidus 91 19.40 189 Two-barred Greenish Warbler Phylloscopus plumbeitarsus 69 14.71 190 Great Reed Warbler Acrocephalus arundinaceus 92 19.62 191 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 192 Blyth's Reed Warbler Acrocephalus dumetorum 43 9.17 193 Reed Warbler Acrocephalus scirpaceus 399 85.07 194 Marsh Warbler Acrocephalus palustris 52 11.09 195 River Warbler Locustella fluviatilis 128 27.29 196 Grasshopper Warbler Locustella naevia 264 56.29 197 Blackcap Sylvia atricapilla 437 93.18 198 Garden Warbler Sylvia borin 343 73.13 199 Lesser Whitethroat Curruca curruca 332 70.79 200 Eastern Subalpine Warbler Curruca cantillans 49 10.45 201 Whitethroat Curruca communis 421 89.77 202 Goldcrest Regulus regulus 427 91.04 203 Wren Troglodytes troglodytes 458 97.65 204 Nuthatch Sitta europaea 431 91.90 205 Treecreeper Certhia familiaris 420 89.55 206 Northern Mockingbird Mimus polyglottos 132 28.14 207 Starling Sturnus vulgaris 458 97.65 208 Varied Thrush Ixoreus naevius 14 2.99 209 Song Thrush Turdus philomelos 454 96.80 210 Mistle Thrush Turdus viscivorus 437 93.18 211 Redwing Turdus iliacus 443 94.46 212 Blackbird Turdus merula 462 98.51 213 Fieldfare Turdus pilaris 422 89.98 214 Ring Ouzel Turdus torquatus 261 55.65 215 Spotted Flycatcher Muscicapa striata 330 70.36 216 Robin Erithacus rubecula 462 98.51 217 Red-breasted Flycatcher Ficedula parva 68 14.50 218 Taiga Flycatcher Ficedula albicilla 47 10.02 219 Pied Flycatcher Ficedula hypoleuca 286 60.98 220 Red-flanked Bluetail Tarsiger cyanurus 52 11.09 221 Black Redstart Phoenicurus ochruros 230 49.04 222 Redstart Phoenicurus phoenicurus 335 71.43 223 Whinchat Saxicola rubetra 302 64.39 224 Stonechat Saxicola rubicola 432 92.11 225 Wheatear Oenanthe oenanthe 409 87.21 226 Dipper Cinclus cinclus 289 61.62 227 Tree Sparrow Passer montanus 328 69.94 228 House Sparrow Passer domesticus 458 97.65 229 Dunnock Prunella modularis 462 98.51 230 Yellow Wagtail Motacilla flava 368 78.46 231 Eastern Yellow Wagtail Motacilla tschutschensis 23 4.90 232 Grey Wagtail Motacilla cinerea 440 93.82 233 Pied Wagtail Motacilla alba 460 98.08 234 Meadow Pipit Anthus pratensis 434 92.54 235 Tree Pipit Anthus trivialis 307 65.46 236 Olive-backed Pipit Anthus hodgsoni 28 5.97 237 Rock Pipit Anthus petrosus 372 79.32 238 Chaffinch Fringilla coelebs 457 97.44 239 Brambling Fringilla montifringilla 310 66.10 240 Hawfinch Coccothraustes coccothraustes 170 36.25 241 Bullfinch Pyrrhula pyrrhula 429 91.47 242 Common Rosefinch Carpodacus erythrinus 69 14.71 243 Greenfinch Chloris chloris 453 96.59 244 Twite Linaria flavirostris 178 37.95 245 Linnet Linaria cannabina 437 93.18 246 Common Redpoll Acanthis flammea 79 16.84 247 Lesser Redpoll Acanthis cabaret 341 72.71 248 Goldfinch Carduelis carduelis 454 96.80 249 Siskin Spinus spinus 414 88.27 250 Lapland Bunting Calcarius lapponicus 78 16.63 251 Snow Bunting Plectrophenax nivalis 254 54.16 252 Corn Bunting Emberiza calandra 289 61.62 253 Yellowhammer Emberiza citrinella 407 86.78 254 Cirl Bunting Emberiza cirlus 103 21.96 255 Rustic Bunting Emberiza rustica 54 11.51 256 Reed Bunting Emberiza schoeniclus 439 93.60