Paul Bowker: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 153 of 153 total. Seq. Species Scientific Name Seen By Other Listers Other Listers (%) 1 Canada Goose Branta canadensis 460 98.08 2 Greylag Goose Anser anser 449 95.74 3 Pink-footed Goose Anser brachyrhynchus 357 76.12 4 White-fronted Goose Anser albifrons 238 50.75 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 Garganey Spatula querquedula 282 60.13 10 Shoveler Spatula clypeata 444 94.67 11 Gadwall Mareca strepera 442 94.24 12 Wigeon Mareca penelope 442 94.24 13 Mallard Anas platyrhynchos 461 98.29 14 Pintail Anas acuta 390 83.16 15 Teal Anas crecca 445 94.88 16 Red-crested Pochard Netta rufina 170 36.25 17 Pochard Aythya ferina 426 90.83 18 Tufted Duck Aythya fuligula 457 97.44 19 Long-tailed Duck Clangula hyemalis 205 43.71 20 Goldeneye Bucephala clangula 383 81.66 21 Goosander Mergus merganser 390 83.16 22 Red Grouse Lagopus lagopus 209 44.56 23 Grey Partridge Perdix perdix 294 62.69 24 Pheasant Phasianus colchicus 454 96.80 25 Red-legged Partridge Alectoris rufa 400 85.29 26 Swift Apus apus 430 91.68 27 Cuckoo Cuculus canorus 382 81.45 28 Stock Dove Columba oenas 416 88.70 29 Woodpigeon Columba palumbus 463 98.72 30 Collared Dove Streptopelia decaocto 453 96.59 31 Moorhen Gallinula chloropus 458 97.65 32 Coot Fulica atra 456 97.23 33 Little Grebe Tachybaptus ruficollis 443 94.46 34 Great Crested Grebe Podiceps cristatus 447 95.31 35 Black-necked Grebe Podiceps nigricollis 255 54.37 36 Oystercatcher Haematopus ostralegus 448 95.52 37 Avocet Recurvirostra avosetta 394 84.01 38 Grey Plover Pluvialis squatarola 343 73.13 39 Golden Plover Pluvialis apricaria 389 82.94 40 Ringed Plover Charadrius hiaticula 399 85.07 41 Little Ringed Plover Charadrius dubius 360 76.76 42 Lapwing Vanellus vanellus 453 96.59 43 White-tailed Plover Vanellus leucurus 200 42.64 44 Eurasian Whimbrel Numenius phaeopus 349 74.41 45 Curlew Numenius arquata 436 92.96 46 Bar-tailed Godwit Limosa lapponica 368 78.46 47 Black-tailed Godwit Limosa limosa 411 87.63 48 Common Sandpiper Actitis hypoleucos 397 84.65 49 Green Sandpiper Tringa ochropus 351 74.84 50 Wood Sandpiper Tringa glareola 270 57.57 51 Redshank Tringa totanus 434 92.54 52 Spotted Redshank Tringa erythropus 331 70.58 53 Greenshank Tringa nebularia 382 81.45 54 Turnstone Arenaria interpres 411 87.63 55 Ruff Calidris pugnax 369 78.68 56 Curlew Sandpiper Calidris ferruginea 260 55.44 57 Long-toed Stint Calidris subminuta 128 27.29 58 Sanderling Calidris alba 369 78.68 59 Dunlin Calidris alpina 418 89.13 60 Little Stint Calidris minuta 290 61.83 61 Pectoral Sandpiper Calidris melanotos 177 37.74 62 Black Tern Chlidonias niger 167 35.61 63 Common Tern Sterna hirundo 407 86.78 64 Sandwich Tern Thalasseus sandvicensis 372 79.32 65 Little Gull Hydrocoloeus minutus 281 59.91 66 Kittiwake Rissa tridactyla 382 81.45 67 Black-headed Gull Chroicocephalus ridibundus 460 98.08 68 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 69 Common Gull Larus canus 418 89.13 70 Herring Gull Larus argentatus 457 97.44 71 Great Black-backed Gull Larus marinus 433 92.32 72 Lesser Black-backed Gull Larus fuscus 448 95.52 73 Iceland Gull Larus glaucoides 158 33.69 74 Puffin Fratercula arctica 305 65.03 75 Razorbill Alca torda 377 80.38 76 Common Guillemot Uria aalge 387 82.52 77 Black-browed Albatross Thalassarche melanophris 200 42.64 78 Fulmar Fulmarus glacialis 389 82.94 79 Gannet Morus bassanus 405 86.35 80 Cormorant Phalacrocorax carbo 457 97.44 81 Shag Gulosus aristotelis 370 78.89 82 Bittern Botaurus stellaris 294 62.69 83 Little Egret Egretta garzetta 444 94.67 84 Cattle Egret Bubulcus ibis 300 63.97 85 Great White Egret Ardea alba 387 82.52 86 Grey Heron Ardea cinerea 454 96.80 87 Sparrowhawk Accipiter nisus 443 94.46 88 Marsh Harrier Circus aeruginosus 406 86.57 89 Red Kite Milvus milvus 434 92.54 90 Buzzard Buteo buteo 457 97.44 91 Barn Owl Tyto alba 371 79.10 92 Little Owl Athene noctua 281 59.91 93 Kingfisher Alcedo atthis 410 87.42 94 Green Woodpecker Picus viridis 395 84.22 95 Kestrel Falco tinnunculus 453 96.59 96 Hobby Falco subbuteo 347 73.99 97 Peregrine Falco peregrinus 421 89.77 98 Ring-necked Parakeet Psittacula krameri 290 61.83 99 Jay Garrulus glandarius 447 95.31 100 Magpie Pica pica 460 98.08 101 Jackdaw Coloeus monedula 459 97.87 102 Rook Corvus frugilegus 453 96.59 103 Carrion Crow Corvus corone 460 98.08 104 Raven Corvus corax 415 88.49 105 Coal Tit Periparus ater 446 95.10 106 Blue Tit Cyanistes caeruleus 463 98.72 107 Great Tit Parus major 461 98.29 108 Bearded Tit Panurus biarmicus 299 63.75 109 Skylark Alauda arvensis 440 93.82 110 Sand Martin Riparia riparia 426 90.83 111 Swallow Hirundo rustica 437 93.18 112 House Martin Delichon urbicum 432 92.11 113 Cetti's Warbler Cettia cetti 387 82.52 114 Long-tailed Tit Aegithalos caudatus 453 96.59 115 Wood Warbler Phylloscopus sibilatrix 179 38.17 116 Willow Warbler Phylloscopus trochilus 415 88.49 117 Chiffchaff Phylloscopus collybita 441 94.03 118 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 119 Reed Warbler Acrocephalus scirpaceus 399 85.07 120 Blackcap Sylvia atricapilla 437 93.18 121 Garden Warbler Sylvia borin 343 73.13 122 Lesser Whitethroat Curruca curruca 332 70.79 123 Whitethroat Curruca communis 421 89.77 124 Wren Troglodytes troglodytes 458 97.65 125 Nuthatch Sitta europaea 431 91.90 126 Treecreeper Certhia familiaris 420 89.55 127 Starling Sturnus vulgaris 458 97.65 128 Song Thrush Turdus philomelos 454 96.80 129 Mistle Thrush Turdus viscivorus 437 93.18 130 Redwing Turdus iliacus 443 94.46 131 Blackbird Turdus merula 462 98.51 132 Fieldfare Turdus pilaris 422 89.98 133 Ring Ouzel Turdus torquatus 261 55.65 134 Robin Erithacus rubecula 462 98.51 135 Pied Flycatcher Ficedula hypoleuca 286 60.98 136 Whinchat Saxicola rubetra 302 64.39 137 Stonechat Saxicola rubicola 432 92.11 138 Wheatear Oenanthe oenanthe 409 87.21 139 Tree Sparrow Passer montanus 328 69.94 140 House Sparrow Passer domesticus 458 97.65 141 Dunnock Prunella modularis 462 98.51 142 Yellow Wagtail Motacilla flava 368 78.46 143 Grey Wagtail Motacilla cinerea 440 93.82 144 Pied Wagtail Motacilla alba 460 98.08 145 Meadow Pipit Anthus pratensis 434 92.54 146 Tree Pipit Anthus trivialis 307 65.46 147 Chaffinch Fringilla coelebs 457 97.44 148 Bullfinch Pyrrhula pyrrhula 429 91.47 149 Greenfinch Chloris chloris 453 96.59 150 Linnet Linaria cannabina 437 93.18 151 Goldfinch Carduelis carduelis 454 96.80 152 Yellowhammer Emberiza citrinella 407 86.78 153 Reed Bunting Emberiza schoeniclus 439 93.60