Andy Lansdell: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 193 of 193 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 Mute Swan Cygnus olor 461 98.29 6 Bewick's Swan Cygnus columbianus 135 28.78 7 Whooper Swan Cygnus cygnus 310 66.10 8 Egyptian Goose Alopochen aegyptiaca 370 78.89 9 Shelduck Tadorna tadorna 441 94.03 10 Mandarin Duck Aix galericulata 310 66.10 11 Garganey Spatula querquedula 282 60.13 12 Shoveler Spatula clypeata 444 94.67 13 Gadwall Mareca strepera 442 94.24 14 Wigeon Mareca penelope 442 94.24 15 Mallard Anas platyrhynchos 461 98.29 16 Pintail Anas acuta 390 83.16 17 Teal Anas crecca 445 94.88 18 Red-crested Pochard Netta rufina 170 36.25 19 Pochard Aythya ferina 426 90.83 20 Ferruginous Duck Aythya nyroca 44 9.38 21 Ring-necked Duck Aythya collaris 190 40.51 22 Tufted Duck Aythya fuligula 457 97.44 23 Scaup Aythya marila 244 52.03 24 Long-tailed Duck Clangula hyemalis 205 43.71 25 Goldeneye Bucephala clangula 383 81.66 26 Goosander Mergus merganser 390 83.16 27 Red-breasted Merganser Mergus serrator 324 69.08 28 Grey Partridge Perdix perdix 294 62.69 29 Pheasant Phasianus colchicus 454 96.80 30 Red-legged Partridge Alectoris rufa 400 85.29 31 Nightjar Caprimulgus europaeus 205 43.71 32 Swift Apus apus 430 91.68 33 Cuckoo Cuculus canorus 382 81.45 34 Rock Dove (Feral Pigeon) Columba livia 403 85.93 35 Stock Dove Columba oenas 416 88.70 36 Woodpigeon Columba palumbus 463 98.72 37 Collared Dove Streptopelia decaocto 453 96.59 38 Water Rail Rallus aquaticus 353 75.27 39 Moorhen Gallinula chloropus 458 97.65 40 Coot Fulica atra 456 97.23 41 Crane Grus grus 199 42.43 42 Little Grebe Tachybaptus ruficollis 443 94.46 43 Great Crested Grebe Podiceps cristatus 447 95.31 44 Black-necked Grebe Podiceps nigricollis 255 54.37 45 Stone-curlew Burhinus oedicnemus 168 35.82 46 Oystercatcher Haematopus ostralegus 448 95.52 47 Black-winged Stilt Himantopus himantopus 82 17.48 48 Avocet Recurvirostra avosetta 394 84.01 49 Grey Plover Pluvialis squatarola 343 73.13 50 Golden Plover Pluvialis apricaria 389 82.94 51 American Golden Plover Pluvialis dominica 73 15.57 52 Ringed Plover Charadrius hiaticula 399 85.07 53 Little Ringed Plover Charadrius dubius 360 76.76 54 Lapwing Vanellus vanellus 453 96.59 55 Eurasian Whimbrel Numenius phaeopus 349 74.41 56 Curlew Numenius arquata 436 92.96 57 Bar-tailed Godwit Limosa lapponica 368 78.46 58 Black-tailed Godwit Limosa limosa 411 87.63 59 Snipe Gallinago gallinago 413 88.06 60 Common Sandpiper Actitis hypoleucos 397 84.65 61 Green Sandpiper Tringa ochropus 351 74.84 62 Redshank Tringa totanus 434 92.54 63 Spotted Redshank Tringa erythropus 331 70.58 64 Greenshank Tringa nebularia 382 81.45 65 Turnstone Arenaria interpres 411 87.63 66 Knot Calidris canutus 349 74.41 67 Ruff Calidris pugnax 369 78.68 68 Curlew Sandpiper Calidris ferruginea 259 55.22 69 Buff-breasted Sandpiper Calidris subruficollis 34 7.25 70 Sanderling Calidris alba 369 78.68 71 Dunlin Calidris alpina 418 89.13 72 Little Stint Calidris minuta 290 61.83 73 Common Tern Sterna hirundo 407 86.78 74 Sandwich Tern Thalasseus sandvicensis 372 79.32 75 Kittiwake Rissa tridactyla 382 81.45 76 Black-headed Gull Chroicocephalus ridibundus 460 98.08 77 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 78 Common Gull Larus canus 418 89.13 79 Herring Gull Larus argentatus 457 97.44 80 Great Black-backed Gull Larus marinus 433 92.32 81 Lesser Black-backed Gull Larus fuscus 448 95.52 82 Puffin Fratercula arctica 305 65.03 83 Razorbill Alca torda 377 80.38 84 Common Guillemot Uria aalge 387 82.52 85 Great Northern Diver Gavia immer 287 61.19 86 Storm Petrel Hydrobates pelagicus 79 16.84 87 Fulmar Fulmarus glacialis 389 82.94 88 Manx Shearwater Puffinus puffinus 246 52.45 89 Gannet Morus bassanus 405 86.35 90 Cormorant Phalacrocorax carbo 457 97.44 91 Shag Gulosus aristotelis 370 78.89 92 Glossy Ibis Plegadis falcinellus 213 45.42 93 Spoonbill Platalea leucorodia 335 71.43 94 Bittern Botaurus stellaris 294 62.69 95 Night-heron Nycticorax nycticorax 18 3.84 96 Little Egret Egretta garzetta 444 94.67 97 Cattle Egret Bubulcus ibis 300 63.97 98 Great White Egret Ardea alba 387 82.52 99 Grey Heron Ardea cinerea 454 96.80 100 Osprey Pandion haliaetus 294 62.69 101 Sparrowhawk Accipiter nisus 443 94.46 102 Goshawk Accipiter gentilis 195 41.58 103 Marsh Harrier Circus aeruginosus 406 86.57 104 Hen Harrier Circus cyaneus 227 48.40 105 Red Kite Milvus milvus 434 92.54 106 Buzzard Buteo buteo 457 97.44 107 Barn Owl Tyto alba 371 79.10 108 Little Owl Athene noctua 281 59.91 109 Tawny Owl Strix aluco 364 77.61 110 Kingfisher Alcedo atthis 410 87.42 111 Lesser Spotted Woodpecker Dryobates minor 117 24.95 112 Great Spotted Woodpecker Dendrocopos major 443 94.46 113 Green Woodpecker Picus viridis 395 84.22 114 Kestrel Falco tinnunculus 453 96.59 115 Red-footed Falcon Falco vespertinus 32 6.82 116 Merlin Falco columbarius 275 58.64 117 Hobby Falco subbuteo 347 73.99 118 Peregrine Falco peregrinus 421 89.77 119 Jay Garrulus glandarius 447 95.31 120 Magpie Pica pica 460 98.08 121 Jackdaw Coloeus monedula 459 97.87 122 Rook Corvus frugilegus 453 96.59 123 Carrion Crow Corvus corone 460 98.08 124 Raven Corvus corax 415 88.49 125 Coal Tit Periparus ater 446 95.10 126 Marsh Tit Poecile palustris 318 67.80 127 Willow Tit Poecile montanus 179 38.17 128 Blue Tit Cyanistes caeruleus 463 98.72 129 Great Tit Parus major 461 98.29 130 Bearded Tit Panurus biarmicus 299 63.75 131 Skylark Alauda arvensis 440 93.82 132 Sand Martin Riparia riparia 426 90.83 133 Swallow Hirundo rustica 437 93.18 134 House Martin Delichon urbicum 432 92.11 135 Cetti's Warbler Cettia cetti 387 82.52 136 Long-tailed Tit Aegithalos caudatus 453 96.59 137 Wood Warbler Phylloscopus sibilatrix 179 38.17 138 Willow Warbler Phylloscopus trochilus 415 88.49 139 Chiffchaff Phylloscopus collybita 441 94.03 140 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 141 Reed Warbler Acrocephalus scirpaceus 399 85.07 142 River Warbler Locustella fluviatilis 128 27.29 143 Grasshopper Warbler Locustella naevia 264 56.29 144 Blackcap Sylvia atricapilla 437 93.18 145 Garden Warbler Sylvia borin 343 73.13 146 Lesser Whitethroat Curruca curruca 332 70.79 147 Whitethroat Curruca communis 421 89.77 148 Dartford Warbler Curruca undata 184 39.23 149 Goldcrest Regulus regulus 427 91.04 150 Wren Troglodytes troglodytes 458 97.65 151 Nuthatch Sitta europaea 431 91.90 152 Treecreeper Certhia familiaris 420 89.55 153 Northern Mockingbird Mimus polyglottos 132 28.14 154 Starling Sturnus vulgaris 458 97.65 155 Song Thrush Turdus philomelos 454 96.80 156 Mistle Thrush Turdus viscivorus 437 93.18 157 Redwing Turdus iliacus 443 94.46 158 Blackbird Turdus merula 462 98.51 159 Fieldfare Turdus pilaris 422 89.98 160 Ring Ouzel Turdus torquatus 261 55.65 161 Robin Erithacus rubecula 462 98.51 162 Nightingale Luscinia megarhynchos 158 33.69 163 Pied Flycatcher Ficedula hypoleuca 286 60.98 164 Black Redstart Phoenicurus ochruros 230 49.04 165 Redstart Phoenicurus phoenicurus 335 71.43 166 Whinchat Saxicola rubetra 302 64.39 167 Stonechat Saxicola rubicola 432 92.11 168 Wheatear Oenanthe oenanthe 409 87.21 169 Dipper Cinclus cinclus 289 61.62 170 Tree Sparrow Passer montanus 328 69.94 171 House Sparrow Passer domesticus 458 97.65 172 Dunnock Prunella modularis 462 98.51 173 Yellow Wagtail Motacilla flava 368 78.46 174 Grey Wagtail Motacilla cinerea 440 93.82 175 Pied Wagtail Motacilla alba 460 98.08 176 Meadow Pipit Anthus pratensis 434 92.54 177 Tree Pipit Anthus trivialis 307 65.46 178 Water Pipit Anthus spinoletta 155 33.05 179 Rock Pipit Anthus petrosus 372 79.32 180 Chaffinch Fringilla coelebs 457 97.44 181 Brambling Fringilla montifringilla 310 66.10 182 Bullfinch Pyrrhula pyrrhula 429 91.47 183 Greenfinch Chloris chloris 453 96.59 184 Linnet Linaria cannabina 437 93.18 185 Lesser Redpoll Acanthis cabaret 341 72.71 186 Common Crossbill Loxia curvirostra 263 56.08 187 Goldfinch Carduelis carduelis 454 96.80 188 Siskin Spinus spinus 414 88.27 189 Snow Bunting Plectrophenax nivalis 254 54.16 190 Corn Bunting Emberiza calandra 289 61.62 191 Yellowhammer Emberiza citrinella 407 86.78 192 Cirl Bunting Emberiza cirlus 103 21.96 193 Reed Bunting Emberiza schoeniclus 439 93.60