Charles Farrell: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 166 of 166 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 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 Ring-necked Duck Aythya collaris 190 40.51 19 Tufted Duck Aythya fuligula 457 97.44 20 Scaup Aythya marila 244 52.03 21 Eider Somateria mollissima 333 71.00 22 Common Scoter Melanitta nigra 347 73.99 23 Goldeneye Bucephala clangula 383 81.66 24 Goosander Mergus merganser 390 83.16 25 Red-breasted Merganser Mergus serrator 324 69.08 26 Pheasant Phasianus colchicus 454 96.80 27 Red-legged Partridge Alectoris rufa 400 85.29 28 Swift Apus apus 430 91.68 29 Cuckoo Cuculus canorus 382 81.45 30 Rock Dove (Feral Pigeon) Columba livia 403 85.93 31 Stock Dove Columba oenas 416 88.70 32 Woodpigeon Columba palumbus 463 98.72 33 Collared Dove Streptopelia decaocto 453 96.59 34 Moorhen Gallinula chloropus 458 97.65 35 Coot Fulica atra 456 97.23 36 Little Grebe Tachybaptus ruficollis 443 94.46 37 Great Crested Grebe Podiceps cristatus 447 95.31 38 Black-necked Grebe Podiceps nigricollis 255 54.37 39 Oystercatcher Haematopus ostralegus 448 95.52 40 Avocet Recurvirostra avosetta 394 84.01 41 Grey Plover Pluvialis squatarola 343 73.13 42 Golden Plover Pluvialis apricaria 389 82.94 43 Ringed Plover Charadrius hiaticula 399 85.07 44 Little Ringed Plover Charadrius dubius 360 76.76 45 Lapwing Vanellus vanellus 453 96.59 46 Eurasian Whimbrel Numenius phaeopus 349 74.41 47 Curlew Numenius arquata 436 92.96 48 Bar-tailed Godwit Limosa lapponica 368 78.46 49 Black-tailed Godwit Limosa limosa 411 87.63 50 Snipe Gallinago gallinago 413 88.06 51 Common Sandpiper Actitis hypoleucos 397 84.65 52 Redshank Tringa totanus 434 92.54 53 Greenshank Tringa nebularia 382 81.45 54 Turnstone Arenaria interpres 411 87.63 55 Knot Calidris canutus 349 74.41 56 Sanderling Calidris alba 369 78.68 57 Dunlin Calidris alpina 418 89.13 58 Purple Sandpiper Calidris maritima 265 56.50 59 Little Stint Calidris minuta 290 61.83 60 Little Tern Sternula albifrons 286 60.98 61 Arctic Tern Sterna paradisaea 290 61.83 62 Common Tern Sterna hirundo 407 86.78 63 Sandwich Tern Thalasseus sandvicensis 372 79.32 64 Elegant Tern Thalasseus elegans 84 17.91 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 Puffin Fratercula arctica 305 65.03 74 Black Guillemot Cepphus grylle 206 43.92 75 Razorbill Alca torda 377 80.38 76 Common Guillemot Uria aalge 387 82.52 77 Red-throated Diver Gavia stellata 330 70.36 78 Fulmar Fulmarus glacialis 389 82.94 79 Manx Shearwater Puffinus puffinus 246 52.45 80 Gannet Morus bassanus 405 86.35 81 Cormorant Phalacrocorax carbo 457 97.44 82 Shag Gulosus aristotelis 370 78.89 83 Bittern Botaurus stellaris 294 62.69 84 Little Egret Egretta garzetta 444 94.67 85 Cattle Egret Bubulcus ibis 300 63.97 86 Great White Egret Ardea alba 387 82.52 87 Grey Heron Ardea cinerea 454 96.80 88 Osprey Pandion haliaetus 294 62.69 89 Sparrowhawk Accipiter nisus 443 94.46 90 Marsh Harrier Circus aeruginosus 406 86.57 91 Hen Harrier Circus cyaneus 227 48.40 92 Red Kite Milvus milvus 434 92.54 93 White-tailed Eagle Haliaeetus albicilla 114 24.31 94 Buzzard Buteo buteo 457 97.44 95 Barn Owl Tyto alba 371 79.10 96 Little Owl Athene noctua 281 59.91 97 Tawny Owl Strix aluco 364 77.61 98 Kingfisher Alcedo atthis 410 87.42 99 Great Spotted Woodpecker Dendrocopos major 443 94.46 100 Green Woodpecker Picus viridis 395 84.22 101 Kestrel Falco tinnunculus 453 96.59 102 Hobby Falco subbuteo 347 73.99 103 Peregrine Falco peregrinus 421 89.77 104 Ring-necked Parakeet Psittacula krameri 290 61.83 105 Jay Garrulus glandarius 447 95.31 106 Magpie Pica pica 460 98.08 107 Chough Pyrrhocorax pyrrhocorax 194 41.36 108 Jackdaw Coloeus monedula 459 97.87 109 Rook Corvus frugilegus 453 96.59 110 Carrion Crow Corvus corone 460 98.08 111 Raven Corvus corax 415 88.49 112 Coal Tit Periparus ater 446 95.10 113 Blue Tit Cyanistes caeruleus 463 98.72 114 Great Tit Parus major 461 98.29 115 Bearded Tit Panurus biarmicus 299 63.75 116 Skylark Alauda arvensis 440 93.82 117 Sand Martin Riparia riparia 426 90.83 118 Swallow Hirundo rustica 437 93.18 119 House Martin Delichon urbicum 432 92.11 120 Cetti's Warbler Cettia cetti 387 82.52 121 Long-tailed Tit Aegithalos caudatus 453 96.59 122 Wood Warbler Phylloscopus sibilatrix 179 38.17 123 Willow Warbler Phylloscopus trochilus 415 88.49 124 Chiffchaff Phylloscopus collybita 441 94.03 125 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 126 Reed Warbler Acrocephalus scirpaceus 399 85.07 127 Grasshopper Warbler Locustella naevia 264 56.29 128 Blackcap Sylvia atricapilla 437 93.18 129 Lesser Whitethroat Curruca curruca 332 70.79 130 Whitethroat Curruca communis 421 89.77 131 Goldcrest Regulus regulus 427 91.04 132 Wren Troglodytes troglodytes 458 97.65 133 Nuthatch Sitta europaea 431 91.90 134 Treecreeper Certhia familiaris 420 89.55 135 Rose-coloured Starling Pastor roseus 99 21.11 136 Starling Sturnus vulgaris 458 97.65 137 Song Thrush Turdus philomelos 454 96.80 138 Mistle Thrush Turdus viscivorus 437 93.18 139 Redwing Turdus iliacus 443 94.46 140 Blackbird Turdus merula 462 98.51 141 Fieldfare Turdus pilaris 422 89.98 142 Ring Ouzel Turdus torquatus 261 55.65 143 Spotted Flycatcher Muscicapa striata 330 70.36 144 Robin Erithacus rubecula 462 98.51 145 Stonechat Saxicola rubicola 432 92.11 146 Wheatear Oenanthe oenanthe 409 87.21 147 Dipper Cinclus cinclus 289 61.62 148 Tree Sparrow Passer montanus 328 69.94 149 House Sparrow Passer domesticus 458 97.65 150 Dunnock Prunella modularis 462 98.51 151 Grey Wagtail Motacilla cinerea 440 93.82 152 Pied Wagtail Motacilla alba 460 98.08 153 Meadow Pipit Anthus pratensis 434 92.54 154 Rock Pipit Anthus petrosus 372 79.32 155 Chaffinch Fringilla coelebs 457 97.44 156 Brambling Fringilla montifringilla 310 66.10 157 Bullfinch Pyrrhula pyrrhula 429 91.47 158 Greenfinch Chloris chloris 453 96.59 159 Twite Linaria flavirostris 178 37.95 160 Linnet Linaria cannabina 437 93.18 161 Lesser Redpoll Acanthis cabaret 341 72.71 162 Goldfinch Carduelis carduelis 454 96.80 163 Siskin Spinus spinus 414 88.27 164 Snow Bunting Plectrophenax nivalis 254 54.16 165 Yellowhammer Emberiza citrinella 407 86.78 166 Reed Bunting Emberiza schoeniclus 439 93.60