Ian Kendall: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 237 of 237 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 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 American Wigeon Mareca americana 68 14.50 18 Mallard Anas platyrhynchos 461 98.29 19 Pintail Anas acuta 390 83.16 20 Teal Anas crecca 445 94.88 21 Pochard Aythya ferina 426 90.83 22 Ring-necked Duck Aythya collaris 190 40.51 23 Tufted Duck Aythya fuligula 457 97.44 24 Scaup Aythya marila 244 52.03 25 Eider Somateria mollissima 333 71.00 26 Velvet Scoter Melanitta fusca 171 36.46 27 Common Scoter Melanitta nigra 347 73.99 28 Long-tailed Duck Clangula hyemalis 205 43.71 29 Goldeneye Bucephala clangula 383 81.66 30 Goosander Mergus merganser 390 83.16 31 Red-breasted Merganser Mergus serrator 324 69.08 32 Red Grouse Lagopus lagopus 209 44.56 33 Grey Partridge Perdix perdix 294 62.69 34 Pheasant Phasianus colchicus 454 96.80 35 Red-legged Partridge Alectoris rufa 400 85.29 36 Nightjar Caprimulgus europaeus 205 43.71 37 Swift Apus apus 430 91.68 38 Cuckoo Cuculus canorus 382 81.45 39 Rock Dove (Feral Pigeon) Columba livia 403 85.93 40 Stock Dove Columba oenas 416 88.70 41 Woodpigeon Columba palumbus 463 98.72 42 Turtle Dove Streptopelia turtur 172 36.67 43 Collared Dove Streptopelia decaocto 453 96.59 44 Water Rail Rallus aquaticus 353 75.27 45 Moorhen Gallinula chloropus 458 97.65 46 Coot Fulica atra 456 97.23 47 Little Grebe Tachybaptus ruficollis 443 94.46 48 Red-necked Grebe Podiceps grisegena 141 30.06 49 Great Crested Grebe Podiceps cristatus 447 95.31 50 Black-necked Grebe Podiceps nigricollis 255 54.37 51 Stone-curlew Burhinus oedicnemus 168 35.82 52 Oystercatcher Haematopus ostralegus 448 95.52 53 Black-winged Stilt Himantopus himantopus 82 17.48 54 Avocet Recurvirostra avosetta 394 84.01 55 Grey Plover Pluvialis squatarola 343 73.13 56 Golden Plover Pluvialis apricaria 389 82.94 57 Ringed Plover Charadrius hiaticula 399 85.07 58 Little Ringed Plover Charadrius dubius 360 76.76 59 Lapwing Vanellus vanellus 453 96.59 60 White-tailed Plover Vanellus leucurus 200 42.64 61 Eurasian Whimbrel Numenius phaeopus 349 74.41 62 Curlew Numenius arquata 436 92.96 63 Bar-tailed Godwit Limosa lapponica 368 78.46 64 Black-tailed Godwit Limosa limosa 411 87.63 65 Jack Snipe Lymnocryptes minimus 232 49.47 66 Woodcock Scolopax rusticola 291 62.05 67 Snipe Gallinago gallinago 413 88.06 68 Common Sandpiper Actitis hypoleucos 397 84.65 69 Green Sandpiper Tringa ochropus 351 74.84 70 Wood Sandpiper Tringa glareola 270 57.57 71 Redshank Tringa totanus 434 92.54 72 Spotted Redshank Tringa erythropus 331 70.58 73 Greenshank Tringa nebularia 382 81.45 74 Turnstone Arenaria interpres 411 87.63 75 Knot Calidris canutus 349 74.41 76 Ruff Calidris pugnax 369 78.68 77 Curlew Sandpiper Calidris ferruginea 260 55.44 78 Long-toed Stint Calidris subminuta 128 27.29 79 Red-necked Stint Calidris ruficollis 58 12.37 80 Sanderling Calidris alba 369 78.68 81 Dunlin Calidris alpina 418 89.13 82 Purple Sandpiper Calidris maritima 265 56.50 83 Little Stint Calidris minuta 290 61.83 84 Pectoral Sandpiper Calidris melanotos 177 37.74 85 Collared Pratincole Glareola pratincola 60 12.79 86 Little Tern Sternula albifrons 286 60.98 87 Black Tern Chlidonias niger 167 35.61 88 Arctic Tern Sterna paradisaea 290 61.83 89 Common Tern Sterna hirundo 407 86.78 90 Sandwich Tern Thalasseus sandvicensis 372 79.32 91 Little Gull Hydrocoloeus minutus 281 59.91 92 Kittiwake Rissa tridactyla 382 81.45 93 Bonaparte's Gull Chroicocephalus philadelphia 107 22.81 94 Black-headed Gull Chroicocephalus ridibundus 460 98.08 95 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 96 Common Gull Larus canus 418 89.13 97 Caspian Gull Larus cachinnans 184 39.23 98 Herring Gull Larus argentatus 457 97.44 99 Yellow-legged Gull Larus michahellis 226 48.19 100 Great Black-backed Gull Larus marinus 433 92.32 101 Glaucous Gull Larus hyperboreus 88 18.76 102 Lesser Black-backed Gull Larus fuscus 448 95.52 103 American Herring Gull Larus smithsonianus 51 10.87 104 Iceland Gull Larus glaucoides 158 33.69 105 Long-tailed Skua Stercorarius longicaudus 87 18.55 106 Arctic Skua Stercorarius parasiticus 204 43.50 107 Pomarine Skua Stercorarius pomarinus 81 17.27 108 Great Skua Stercorarius skua 216 46.06 109 Puffin Fratercula arctica 305 65.03 110 Black Guillemot Cepphus grylle 206 43.92 111 Razorbill Alca torda 377 80.38 112 Common Guillemot Uria aalge 387 82.52 113 Red-throated Diver Gavia stellata 330 70.36 114 Black-throated Diver Gavia arctica 178 37.95 115 Great Northern Diver Gavia immer 287 61.19 116 Black-browed Albatross Thalassarche melanophris 200 42.64 117 Fulmar Fulmarus glacialis 389 82.94 118 Soft-plumaged Petrel Pterodroma mollis 4 0.85 119 Sooty Shearwater Ardenna grisea 126 26.87 120 Manx Shearwater Puffinus puffinus 246 52.45 121 Balearic Shearwater Puffinus mauretanicus 94 20.04 122 Gannet Morus bassanus 405 86.35 123 Cormorant Phalacrocorax carbo 457 97.44 124 Shag Gulosus aristotelis 370 78.89 125 Spoonbill Platalea leucorodia 335 71.43 126 Little Egret Egretta garzetta 444 94.67 127 Cattle Egret Bubulcus ibis 300 63.97 128 Great White Egret Ardea alba 387 82.52 129 Grey Heron Ardea cinerea 454 96.80 130 Honey-buzzard Pernis apivorus 83 17.70 131 Sparrowhawk Accipiter nisus 443 94.46 132 Goshawk Accipiter gentilis 195 41.58 133 Marsh Harrier Circus aeruginosus 406 86.57 134 Hen Harrier Circus cyaneus 227 48.40 135 Red Kite Milvus milvus 434 92.54 136 Buzzard Buteo buteo 457 97.44 137 Barn Owl Tyto alba 371 79.10 138 Little Owl Athene noctua 281 59.91 139 Short-eared Owl Asio flammeus 262 55.86 140 Tawny Owl Strix aluco 364 77.61 141 Roller Coracias garrulus 113 24.09 142 Kingfisher Alcedo atthis 410 87.42 143 Belted Kingfisher Megaceryle alcyon 93 19.83 144 Great Spotted Woodpecker Dendrocopos major 443 94.46 145 Green Woodpecker Picus viridis 395 84.22 146 Kestrel Falco tinnunculus 453 96.59 147 Merlin Falco columbarius 275 58.64 148 Hobby Falco subbuteo 347 73.99 149 Peregrine Falco peregrinus 421 89.77 150 Ring-necked Parakeet Psittacula krameri 290 61.83 151 Lesser Grey Shrike Lanius minor 28 5.97 152 Woodchat Shrike Lanius senator 99 21.11 153 Brown Shrike Lanius cristatus 15 3.20 154 Jay Garrulus glandarius 447 95.31 155 Magpie Pica pica 460 98.08 156 Chough Pyrrhocorax pyrrhocorax 194 41.36 157 Jackdaw Coloeus monedula 459 97.87 158 Rook Corvus frugilegus 453 96.59 159 Carrion Crow Corvus corone 460 98.08 160 Raven Corvus corax 415 88.49 161 Coal Tit Periparus ater 446 95.10 162 Marsh Tit Poecile palustris 318 67.80 163 Willow Tit Poecile montanus 179 38.17 164 Blue Tit Cyanistes caeruleus 463 98.72 165 Great Tit Parus major 461 98.29 166 Bearded Tit Panurus biarmicus 299 63.75 167 Woodlark Lullula arborea 210 44.78 168 Skylark Alauda arvensis 440 93.82 169 Sand Martin Riparia riparia 426 90.83 170 Swallow Hirundo rustica 437 93.18 171 House Martin Delichon urbicum 432 92.11 172 Cetti's Warbler Cettia cetti 387 82.52 173 Long-tailed Tit Aegithalos caudatus 453 96.59 174 Willow Warbler Phylloscopus trochilus 415 88.49 175 Chiffchaff Phylloscopus collybita 441 94.03 176 Green Warbler Phylloscopus nitidus 91 19.40 177 Great Reed Warbler Acrocephalus arundinaceus 92 19.62 178 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 179 Reed Warbler Acrocephalus scirpaceus 399 85.07 180 Marsh Warbler Acrocephalus palustris 52 11.09 181 River Warbler Locustella fluviatilis 128 27.29 182 Grasshopper Warbler Locustella naevia 264 56.29 183 Blackcap Sylvia atricapilla 437 93.18 184 Garden Warbler Sylvia borin 343 73.13 185 Lesser Whitethroat Curruca curruca 332 70.79 186 Whitethroat Curruca communis 421 89.77 187 Dartford Warbler Curruca undata 184 39.23 188 Firecrest Regulus ignicapilla 198 42.22 189 Goldcrest Regulus regulus 427 91.04 190 Wren Troglodytes troglodytes 458 97.65 191 Nuthatch Sitta europaea 431 91.90 192 Treecreeper Certhia familiaris 420 89.55 193 Northern Mockingbird Mimus polyglottos 132 28.14 194 Starling Sturnus vulgaris 458 97.65 195 Song Thrush Turdus philomelos 454 96.80 196 Mistle Thrush Turdus viscivorus 437 93.18 197 Redwing Turdus iliacus 443 94.46 198 Blackbird Turdus merula 462 98.51 199 Fieldfare Turdus pilaris 422 89.98 200 Ring Ouzel Turdus torquatus 261 55.65 201 Spotted Flycatcher Muscicapa striata 330 70.36 202 Robin Erithacus rubecula 462 98.51 203 Taiga Flycatcher Ficedula albicilla 47 10.02 204 Pied Flycatcher Ficedula hypoleuca 286 60.98 205 Red-flanked Bluetail Tarsiger cyanurus 52 11.09 206 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 Pied Wheatear Oenanthe pleschanka 21 4.48 211 Dipper Cinclus cinclus 289 61.62 212 Tree Sparrow Passer montanus 328 69.94 213 House Sparrow Passer domesticus 458 97.65 214 Dunnock Prunella modularis 462 98.51 215 Yellow Wagtail Motacilla flava 368 78.46 216 Grey Wagtail Motacilla cinerea 440 93.82 217 Pied Wagtail Motacilla alba 460 98.08 218 Meadow Pipit Anthus pratensis 434 92.54 219 Tree Pipit Anthus trivialis 307 65.46 220 Rock Pipit Anthus petrosus 372 79.32 221 Chaffinch Fringilla coelebs 457 97.44 222 Brambling Fringilla montifringilla 310 66.10 223 Bullfinch Pyrrhula pyrrhula 429 91.47 224 Greenfinch Chloris chloris 453 96.59 225 Twite Linaria flavirostris 178 37.95 226 Linnet Linaria cannabina 437 93.18 227 Lesser Redpoll Acanthis cabaret 341 72.71 228 Common Crossbill Loxia curvirostra 263 56.08 229 Goldfinch Carduelis carduelis 454 96.80 230 Serin Serinus serinus 27 5.76 231 Siskin Spinus spinus 414 88.27 232 Lapland Bunting Calcarius lapponicus 78 16.63 233 Snow Bunting Plectrophenax nivalis 254 54.16 234 Corn Bunting Emberiza calandra 289 61.62 235 Yellowhammer Emberiza citrinella 407 86.78 236 Reed Bunting Emberiza schoeniclus 439 93.60 237 White-throated Sparrow Zonotrichia albicollis 63 13.43