Martin McCallum: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 251 of 251 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 Greylag Goose Anser anser 449 95.74 4 Pink-footed Goose Anser brachyrhynchus 357 76.12 5 Tundra Bean Goose Anser serrirostris 83 17.70 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 Egyptian Goose Alopochen aegyptiaca 370 78.89 11 Shelduck Tadorna tadorna 441 94.03 12 Mandarin Duck Aix galericulata 310 66.10 13 Garganey Spatula querquedula 282 60.13 14 Shoveler Spatula clypeata 444 94.67 15 Gadwall Mareca strepera 442 94.24 16 Wigeon Mareca penelope 442 94.24 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 Tufted Duck Aythya fuligula 457 97.44 24 Scaup Aythya marila 244 52.03 25 Eider Somateria mollissima 333 71.00 26 Surf Scoter Melanitta perspicillata 53 11.30 27 Velvet Scoter Melanitta fusca 171 36.46 28 Common Scoter Melanitta nigra 347 73.99 29 Long-tailed Duck Clangula hyemalis 205 43.71 30 Goldeneye Bucephala clangula 383 81.66 31 Smew Mergellus albellus 159 33.90 32 Goosander Mergus merganser 390 83.16 33 Red-breasted Merganser Mergus serrator 324 69.08 34 Red Grouse Lagopus lagopus 209 44.56 35 Grey Partridge Perdix perdix 294 62.69 36 Pheasant Phasianus colchicus 454 96.80 37 Red-legged Partridge Alectoris rufa 400 85.29 38 Nightjar Caprimulgus europaeus 205 43.71 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 Oriental Turtle Dove Streptopelia orientalis 33 7.04 46 Collared Dove Streptopelia decaocto 453 96.59 47 Water Rail Rallus aquaticus 353 75.27 48 Moorhen Gallinula chloropus 458 97.65 49 Coot Fulica atra 456 97.23 50 Crane Grus grus 199 42.43 51 Little Grebe Tachybaptus ruficollis 443 94.46 52 Red-necked Grebe Podiceps grisegena 141 30.06 53 Great Crested Grebe Podiceps cristatus 447 95.31 54 Slavonian Grebe Podiceps auritus 235 50.11 55 Black-necked Grebe Podiceps nigricollis 255 54.37 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 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 Kentish Plover Anarhynchus alexandrinus 15 3.20 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 Woodcock Scolopax rusticola 291 62.05 72 Snipe Gallinago gallinago 413 88.06 73 Grey Phalarope Phalaropus fulicarius 114 24.31 74 Common Sandpiper Actitis hypoleucos 397 84.65 75 Green Sandpiper Tringa ochropus 351 74.84 76 Wood Sandpiper Tringa glareola 270 57.57 77 Redshank Tringa totanus 434 92.54 78 Spotted Redshank Tringa erythropus 331 70.58 79 Greenshank Tringa nebularia 382 81.45 80 Turnstone Arenaria interpres 411 87.63 81 Knot Calidris canutus 349 74.41 82 Ruff Calidris pugnax 369 78.68 83 Curlew Sandpiper Calidris ferruginea 259 55.22 84 Temminck's Stint Calidris temminckii 89 18.98 85 Long-toed Stint Calidris subminuta 128 27.29 86 Sanderling Calidris alba 369 78.68 87 Dunlin Calidris alpina 418 89.13 88 Purple Sandpiper Calidris maritima 265 56.50 89 Baird's Sandpiper Calidris bairdii 20 4.26 90 Little Stint Calidris minuta 290 61.83 91 Pectoral Sandpiper Calidris melanotos 177 37.74 92 Little Tern Sternula albifrons 286 60.98 93 Black Tern Chlidonias niger 167 35.61 94 Arctic Tern Sterna paradisaea 290 61.83 95 Common Tern Sterna hirundo 407 86.78 96 Roseate Tern Sterna dougallii 143 30.49 97 Sandwich Tern Thalasseus sandvicensis 372 79.32 98 Elegant Tern Thalasseus elegans 84 17.91 99 Little Gull Hydrocoloeus minutus 281 59.91 100 Kittiwake Rissa tridactyla 382 81.45 101 Sabine's Gull Xema sabini 38 8.10 102 Bonaparte's Gull Chroicocephalus philadelphia 107 22.81 103 Black-headed Gull Chroicocephalus ridibundus 460 98.08 104 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 105 Common Gull Larus canus 418 89.13 106 Caspian Gull Larus cachinnans 184 39.23 107 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 Long-tailed Skua Stercorarius longicaudus 87 18.55 112 Arctic Skua Stercorarius parasiticus 204 43.50 113 Great Skua Stercorarius skua 216 46.06 114 Puffin Fratercula arctica 305 65.03 115 Black Guillemot Cepphus grylle 206 43.92 116 Razorbill Alca torda 377 80.38 117 Common Guillemot Uria aalge 387 82.52 118 Red-throated Diver Gavia stellata 330 70.36 119 Black-throated Diver Gavia arctica 178 37.95 120 Great Northern Diver Gavia immer 287 61.19 121 Black-browed Albatross Thalassarche melanophris 200 42.64 122 Fulmar Fulmarus glacialis 389 82.94 123 Sooty Shearwater Ardenna grisea 126 26.87 124 Manx Shearwater Puffinus puffinus 246 52.45 125 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 Osprey Pandion haliaetus 294 62.69 136 Honey-buzzard Pernis apivorus 83 17.70 137 Sparrowhawk Accipiter nisus 443 94.46 138 Goshawk Accipiter gentilis 195 41.58 139 Marsh Harrier Circus aeruginosus 406 86.57 140 Red Kite Milvus milvus 434 92.54 141 White-tailed Eagle Haliaeetus albicilla 114 24.31 142 Buzzard Buteo buteo 457 97.44 143 Barn Owl Tyto alba 371 79.10 144 Little Owl Athene noctua 281 59.91 145 Long-eared Owl Asio otus 113 24.09 146 Short-eared Owl Asio flammeus 262 55.86 147 Tawny Owl Strix aluco 364 77.61 148 Hoopoe Upupa epops 92 19.62 149 Kingfisher Alcedo atthis 410 87.42 150 Wryneck Jynx torquilla 108 23.03 151 Lesser Spotted Woodpecker Dryobates minor 117 24.95 152 Great Spotted Woodpecker Dendrocopos major 443 94.46 153 Green Woodpecker Picus viridis 395 84.22 154 Kestrel Falco tinnunculus 453 96.59 155 Merlin Falco columbarius 275 58.64 156 Hobby Falco subbuteo 347 73.99 157 Peregrine Falco peregrinus 421 89.77 158 Golden Oriole Oriolus oriolus 57 12.15 159 Red-backed Shrike Lanius collurio 122 26.01 160 Jay Garrulus glandarius 447 95.31 161 Magpie Pica pica 460 98.08 162 Jackdaw Coloeus monedula 459 97.87 163 Rook Corvus frugilegus 453 96.59 164 Carrion Crow Corvus corone 460 98.08 165 Hooded Crow Corvus cornix 193 41.15 166 Raven Corvus corax 415 88.49 167 Coal Tit Periparus ater 446 95.10 168 Marsh Tit Poecile palustris 318 67.80 169 Willow Tit Poecile montanus 179 38.17 170 Blue Tit Cyanistes caeruleus 463 98.72 171 Great Tit Parus major 461 98.29 172 Bearded Tit Panurus biarmicus 299 63.75 173 Woodlark Lullula arborea 210 44.78 174 Skylark Alauda arvensis 440 93.82 175 Calandra Lark Melanocorypha calandra 1 0.21 176 Sand Martin Riparia riparia 426 90.83 177 Swallow Hirundo rustica 437 93.18 178 House Martin Delichon urbicum 432 92.11 179 Cetti's Warbler Cettia cetti 387 82.52 180 Long-tailed Tit Aegithalos caudatus 453 96.59 181 Wood Warbler Phylloscopus sibilatrix 179 38.17 182 Western Bonelli's Warbler Phylloscopus bonelli 38 8.10 183 Yellow-browed Warbler Phylloscopus inornatus 128 27.29 184 Pallas's Warbler Phylloscopus proregulus 15 3.20 185 Willow Warbler Phylloscopus trochilus 415 88.49 186 Chiffchaff Phylloscopus collybita 441 94.03 187 Green Warbler Phylloscopus nitidus 91 19.40 188 Two-barred Greenish Warbler Phylloscopus plumbeitarsus 69 14.71 189 Arctic Warbler Phylloscopus borealis 29 6.18 190 Great Reed Warbler Acrocephalus arundinaceus 92 19.62 191 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 192 Reed Warbler Acrocephalus scirpaceus 399 85.07 193 Marsh Warbler Acrocephalus palustris 52 11.09 194 Icterine Warbler Hippolais icterina 22 4.69 195 River Warbler Locustella fluviatilis 128 27.29 196 Savi's Warbler Locustella luscinioides 60 12.79 197 Blackcap Sylvia atricapilla 437 93.18 198 Garden Warbler Sylvia borin 343 73.13 199 Barred Warbler Curruca nisoria 63 13.43 200 Lesser Whitethroat Curruca curruca 332 70.79 201 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 Song Thrush Turdus philomelos 454 96.80 209 Mistle Thrush Turdus viscivorus 437 93.18 210 Redwing Turdus iliacus 443 94.46 211 Blackbird Turdus merula 462 98.51 212 Fieldfare Turdus pilaris 422 89.98 213 Spotted Flycatcher Muscicapa striata 330 70.36 214 Robin Erithacus rubecula 462 98.51 215 Thrush Nightingale Luscinia luscinia 12 2.56 216 Bluethroat Luscinia svecica 83 17.70 217 Pied Flycatcher Ficedula hypoleuca 286 60.98 218 Black Redstart Phoenicurus ochruros 230 49.04 219 Redstart Phoenicurus phoenicurus 335 71.43 220 Whinchat Saxicola rubetra 302 64.39 221 Stonechat Saxicola rubicola 432 92.11 222 Wheatear Oenanthe oenanthe 409 87.21 223 Dipper Cinclus cinclus 289 61.62 224 Tree Sparrow Passer montanus 328 69.94 225 House Sparrow Passer domesticus 458 97.65 226 Dunnock Prunella modularis 462 98.51 227 Yellow Wagtail Motacilla flava 368 78.46 228 Grey Wagtail Motacilla cinerea 440 93.82 229 Pied Wagtail Motacilla alba 460 98.08 230 Meadow Pipit Anthus pratensis 434 92.54 231 Tree Pipit Anthus trivialis 307 65.46 232 Rock Pipit Anthus petrosus 372 79.32 233 Chaffinch Fringilla coelebs 457 97.44 234 Brambling Fringilla montifringilla 310 66.10 235 Hawfinch Coccothraustes coccothraustes 170 36.25 236 Bullfinch Pyrrhula pyrrhula 429 91.47 237 Greenfinch Chloris chloris 453 96.59 238 Twite Linaria flavirostris 178 37.95 239 Linnet Linaria cannabina 437 93.18 240 Lesser Redpoll Acanthis cabaret 341 72.71 241 Common Crossbill Loxia curvirostra 263 56.08 242 Two-barred Crossbill Loxia leucoptera 22 4.69 243 Goldfinch Carduelis carduelis 454 96.80 244 Siskin Spinus spinus 414 88.27 245 Lapland Bunting Calcarius lapponicus 78 16.63 246 Snow Bunting Plectrophenax nivalis 254 54.16 247 Corn Bunting Emberiza calandra 289 61.62 248 Yellowhammer Emberiza citrinella 407 86.78 249 Little Bunting Emberiza pusilla 110 23.45 250 Reed Bunting Emberiza schoeniclus 439 93.60 251 White-throated Sparrow Zonotrichia albicollis 63 13.43