David Sinclair: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 173 of 173 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 Mute Swan Cygnus olor 461 98.29 6 Whooper Swan Cygnus cygnus 310 66.10 7 Egyptian Goose Alopochen aegyptiaca 370 78.89 8 Shelduck Tadorna tadorna 441 94.03 9 Mandarin Duck Aix galericulata 310 66.10 10 Garganey Spatula querquedula 282 60.13 11 Shoveler Spatula clypeata 444 94.67 12 Gadwall Mareca strepera 442 94.24 13 Wigeon Mareca penelope 442 94.24 14 Mallard Anas platyrhynchos 461 98.29 15 Teal Anas crecca 445 94.88 16 Pochard Aythya ferina 426 90.83 17 Tufted Duck Aythya fuligula 457 97.44 18 Red-breasted Merganser Mergus serrator 324 69.08 19 Pheasant Phasianus colchicus 454 96.80 20 Red-legged Partridge Alectoris rufa 400 85.29 21 Nightjar Caprimulgus europaeus 205 43.71 22 Swift Apus apus 430 91.68 23 Cuckoo Cuculus canorus 382 81.45 24 Rock Dove (Feral Pigeon) Columba livia 403 85.93 25 Stock Dove Columba oenas 416 88.70 26 Woodpigeon Columba palumbus 463 98.72 27 Collared Dove Streptopelia decaocto 453 96.59 28 Moorhen Gallinula chloropus 458 97.65 29 Coot Fulica atra 456 97.23 30 Little Grebe Tachybaptus ruficollis 443 94.46 31 Great Crested Grebe Podiceps cristatus 447 95.31 32 Stone-curlew Burhinus oedicnemus 168 35.82 33 Oystercatcher Haematopus ostralegus 448 95.52 34 Avocet Recurvirostra avosetta 394 84.01 35 Grey Plover Pluvialis squatarola 343 73.13 36 Golden Plover Pluvialis apricaria 389 82.94 37 Pacific Golden Plover Pluvialis fulva 133 28.36 38 Dotterel Eudromias morinellus 109 23.24 39 Ringed Plover Charadrius hiaticula 399 85.07 40 Little Ringed Plover Charadrius dubius 360 76.76 41 Lapwing Vanellus vanellus 453 96.59 42 White-tailed Plover Vanellus leucurus 200 42.64 43 Eurasian Whimbrel Numenius phaeopus 349 74.41 44 Curlew Numenius arquata 436 92.96 45 Bar-tailed Godwit Limosa lapponica 368 78.46 46 Black-tailed Godwit Limosa limosa 411 87.63 47 Jack Snipe Lymnocryptes minimus 232 49.47 48 Snipe Gallinago gallinago 413 88.06 49 Grey Phalarope Phalaropus fulicarius 114 24.31 50 Common Sandpiper Actitis hypoleucos 397 84.65 51 Green Sandpiper Tringa ochropus 351 74.84 52 Wood Sandpiper Tringa glareola 270 57.57 53 Redshank Tringa totanus 434 92.54 54 Spotted Redshank Tringa erythropus 331 70.58 55 Greenshank Tringa nebularia 382 81.45 56 Turnstone Arenaria interpres 411 87.63 57 Knot Calidris canutus 349 74.41 58 Ruff Calidris pugnax 369 78.68 59 Temminck's Stint Calidris temminckii 89 18.98 60 Long-toed Stint Calidris subminuta 128 27.29 61 Sanderling Calidris alba 369 78.68 62 Dunlin Calidris alpina 418 89.13 63 Little Stint Calidris minuta 290 61.83 64 Pectoral Sandpiper Calidris melanotos 177 37.74 65 Black Tern Chlidonias niger 167 35.61 66 Common Tern Sterna hirundo 407 86.78 67 Little Gull Hydrocoloeus minutus 281 59.91 68 Kittiwake Rissa tridactyla 382 81.45 69 Black-headed Gull Chroicocephalus ridibundus 460 98.08 70 Common Gull Larus canus 418 89.13 71 Herring Gull Larus argentatus 457 97.44 72 Yellow-legged Gull Larus michahellis 226 48.19 73 Great Black-backed Gull Larus marinus 433 92.32 74 Lesser Black-backed Gull Larus fuscus 448 95.52 75 Puffin Fratercula arctica 305 65.03 76 Razorbill Alca torda 377 80.38 77 Common Guillemot Uria aalge 387 82.52 78 Red-throated Diver Gavia stellata 330 70.36 79 Black-browed Albatross Thalassarche melanophris 200 42.64 80 Fulmar Fulmarus glacialis 389 82.94 81 Manx Shearwater Puffinus puffinus 246 52.45 82 Black Stork Ciconia nigra 82 17.48 83 Gannet Morus bassanus 405 86.35 84 Cormorant Phalacrocorax carbo 457 97.44 85 Shag Gulosus aristotelis 370 78.89 86 Glossy Ibis Plegadis falcinellus 213 45.42 87 Spoonbill Platalea leucorodia 335 71.43 88 Bittern Botaurus stellaris 294 62.69 89 Little Egret Egretta garzetta 444 94.67 90 Cattle Egret Bubulcus ibis 300 63.97 91 Great White Egret Ardea alba 387 82.52 92 Grey Heron Ardea cinerea 454 96.80 93 Osprey Pandion haliaetus 294 62.69 94 Sparrowhawk Accipiter nisus 443 94.46 95 Marsh Harrier Circus aeruginosus 406 86.57 96 Red Kite Milvus milvus 434 92.54 97 Buzzard Buteo buteo 457 97.44 98 Barn Owl Tyto alba 371 79.10 99 Little Owl Athene noctua 281 59.91 100 Short-eared Owl Asio flammeus 262 55.86 101 Tawny Owl Strix aluco 364 77.61 102 Roller Coracias garrulus 113 24.09 103 Kingfisher Alcedo atthis 410 87.42 104 Great Spotted Woodpecker Dendrocopos major 443 94.46 105 Green Woodpecker Picus viridis 395 84.22 106 Kestrel Falco tinnunculus 453 96.59 107 Hobby Falco subbuteo 347 73.99 108 Peregrine Falco peregrinus 421 89.77 109 Ring-necked Parakeet Psittacula krameri 290 61.83 110 Jay Garrulus glandarius 447 95.31 111 Magpie Pica pica 460 98.08 112 Chough Pyrrhocorax pyrrhocorax 194 41.36 113 Jackdaw Coloeus monedula 459 97.87 114 Rook Corvus frugilegus 453 96.59 115 Carrion Crow Corvus corone 460 98.08 116 Raven Corvus corax 415 88.49 117 Coal Tit Periparus ater 446 95.10 118 Marsh Tit Poecile palustris 318 67.80 119 Blue Tit Cyanistes caeruleus 463 98.72 120 Great Tit Parus major 461 98.29 121 Bearded Tit Panurus biarmicus 299 63.75 122 Skylark Alauda arvensis 440 93.82 123 Short-toed Lark Calandrella brachydactyla 37 7.89 124 Sand Martin Riparia riparia 426 90.83 125 Swallow Hirundo rustica 437 93.18 126 House Martin Delichon urbicum 432 92.11 127 Cetti's Warbler Cettia cetti 387 82.52 128 Long-tailed Tit Aegithalos caudatus 453 96.59 129 Willow Warbler Phylloscopus trochilus 415 88.49 130 Chiffchaff Phylloscopus collybita 441 94.03 131 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 132 Blyth's Reed Warbler Acrocephalus dumetorum 43 9.17 133 Reed Warbler Acrocephalus scirpaceus 399 85.07 134 Blackcap Sylvia atricapilla 437 93.18 135 Garden Warbler Sylvia borin 343 73.13 136 Lesser Whitethroat Curruca curruca 332 70.79 137 Whitethroat Curruca communis 421 89.77 138 Goldcrest Regulus regulus 427 91.04 139 Wren Troglodytes troglodytes 458 97.65 140 Nuthatch Sitta europaea 431 91.90 141 Treecreeper Certhia familiaris 420 89.55 142 Starling Sturnus vulgaris 458 97.65 143 Song Thrush Turdus philomelos 454 96.80 144 Mistle Thrush Turdus viscivorus 437 93.18 145 Redwing Turdus iliacus 443 94.46 146 Blackbird Turdus merula 462 98.51 147 Fieldfare Turdus pilaris 422 89.98 148 Spotted Flycatcher Muscicapa striata 330 70.36 149 Robin Erithacus rubecula 462 98.51 150 Pied Flycatcher Ficedula hypoleuca 286 60.98 151 Redstart Phoenicurus phoenicurus 335 71.43 152 Stonechat Saxicola rubicola 432 92.11 153 Wheatear Oenanthe oenanthe 409 87.21 154 Tree Sparrow Passer montanus 328 69.94 155 House Sparrow Passer domesticus 458 97.65 156 Dunnock Prunella modularis 462 98.51 157 Yellow Wagtail Motacilla flava 368 78.46 158 Grey Wagtail Motacilla cinerea 440 93.82 159 Pied Wagtail Motacilla alba 460 98.08 160 Meadow Pipit Anthus pratensis 434 92.54 161 Tree Pipit Anthus trivialis 307 65.46 162 Chaffinch Fringilla coelebs 457 97.44 163 Brambling Fringilla montifringilla 310 66.10 164 Bullfinch Pyrrhula pyrrhula 429 91.47 165 Greenfinch Chloris chloris 453 96.59 166 Linnet Linaria cannabina 437 93.18 167 Lesser Redpoll Acanthis cabaret 341 72.71 168 Common Crossbill Loxia curvirostra 263 56.08 169 Goldfinch Carduelis carduelis 454 96.80 170 Siskin Spinus spinus 414 88.27 171 Yellowhammer Emberiza citrinella 407 86.78 172 Cirl Bunting Emberiza cirlus 103 21.96 173 Reed Bunting Emberiza schoeniclus 439 93.60