Nick Goldsmith: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 165 of 165 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 Mute Swan Cygnus olor 461 98.29 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 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 Pintail Anas acuta 390 83.16 16 Teal Anas crecca 445 94.88 17 Pochard Aythya ferina 426 90.83 18 Tufted Duck Aythya fuligula 457 97.44 19 Eider Somateria mollissima 333 71.00 20 Velvet Scoter Melanitta fusca 171 36.46 21 Goldeneye Bucephala clangula 383 81.66 22 Goosander Mergus merganser 390 83.16 23 Red-breasted Merganser Mergus serrator 324 69.08 24 Pheasant Phasianus colchicus 454 96.80 25 Red-legged Partridge Alectoris rufa 400 85.29 26 Nightjar Caprimulgus europaeus 205 43.71 27 Swift Apus apus 430 91.68 28 Cuckoo Cuculus canorus 382 81.45 29 Rock Dove (Feral Pigeon) Columba livia 403 85.93 30 Stock Dove Columba oenas 416 88.70 31 Woodpigeon Columba palumbus 463 98.72 32 Turtle Dove Streptopelia turtur 172 36.67 33 Collared Dove Streptopelia decaocto 453 96.59 34 Water Rail Rallus aquaticus 353 75.27 35 Moorhen Gallinula chloropus 458 97.65 36 Coot Fulica atra 456 97.23 37 Little Grebe Tachybaptus ruficollis 443 94.46 38 Great Crested Grebe Podiceps cristatus 447 95.31 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 White-tailed Plover Vanellus leucurus 200 42.64 47 Eurasian Whimbrel Numenius phaeopus 349 74.41 48 Curlew Numenius arquata 436 92.96 49 Bar-tailed Godwit Limosa lapponica 368 78.46 50 Black-tailed Godwit Limosa limosa 411 87.63 51 Snipe Gallinago gallinago 413 88.06 52 Common Sandpiper Actitis hypoleucos 397 84.65 53 Green Sandpiper Tringa ochropus 351 74.84 54 Redshank Tringa totanus 434 92.54 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 Long-toed Stint Calidris subminuta 128 27.29 60 Sanderling Calidris alba 369 78.68 61 Dunlin Calidris alpina 418 89.13 62 Little Tern Sternula albifrons 286 60.98 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 Yellow-legged Gull Larus michahellis 226 48.19 72 Great Black-backed Gull Larus marinus 433 92.32 73 Lesser Black-backed Gull Larus fuscus 448 95.52 74 Arctic Skua Stercorarius parasiticus 204 43.50 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 Great Northern Diver Gavia immer 287 61.19 79 Fulmar Fulmarus glacialis 389 82.94 80 Sooty Shearwater Ardenna grisea 126 26.87 81 Gannet Morus bassanus 405 86.35 82 Cormorant Phalacrocorax carbo 457 97.44 83 Shag Gulosus aristotelis 370 78.89 84 Spoonbill Platalea leucorodia 335 71.43 85 Little Egret Egretta garzetta 444 94.67 86 Cattle Egret Bubulcus ibis 300 63.97 87 Great White Egret Ardea alba 387 82.52 88 Grey Heron Ardea cinerea 454 96.80 89 Osprey Pandion haliaetus 294 62.69 90 Sparrowhawk Accipiter nisus 443 94.46 91 Marsh Harrier Circus aeruginosus 406 86.57 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 Tawny Owl Strix aluco 364 77.61 97 Kingfisher Alcedo atthis 410 87.42 98 Great Spotted Woodpecker Dendrocopos major 443 94.46 99 Green Woodpecker Picus viridis 395 84.22 100 Kestrel Falco tinnunculus 453 96.59 101 Merlin Falco columbarius 275 58.64 102 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 Jackdaw Coloeus monedula 459 97.87 108 Rook Corvus frugilegus 453 96.59 109 Carrion Crow Corvus corone 460 98.08 110 Hooded Crow Corvus cornix 193 41.15 111 Raven Corvus corax 415 88.49 112 Coal Tit Periparus ater 446 95.10 113 Marsh Tit Poecile palustris 318 67.80 114 Blue Tit Cyanistes caeruleus 463 98.72 115 Great Tit Parus major 461 98.29 116 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 Willow Warbler Phylloscopus trochilus 415 88.49 123 Chiffchaff Phylloscopus collybita 441 94.03 124 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 125 Reed Warbler Acrocephalus scirpaceus 399 85.07 126 Grasshopper Warbler Locustella naevia 264 56.29 127 Blackcap Sylvia atricapilla 437 93.18 128 Garden Warbler Sylvia borin 343 73.13 129 Lesser Whitethroat Curruca curruca 332 70.79 130 Whitethroat Curruca communis 421 89.77 131 Dartford Warbler Curruca undata 184 39.23 132 Firecrest Regulus ignicapilla 198 42.22 133 Goldcrest Regulus regulus 427 91.04 134 Wren Troglodytes troglodytes 458 97.65 135 Nuthatch Sitta europaea 431 91.90 136 Treecreeper Certhia familiaris 420 89.55 137 Starling Sturnus vulgaris 458 97.65 138 Song Thrush Turdus philomelos 454 96.80 139 Mistle Thrush Turdus viscivorus 437 93.18 140 Redwing Turdus iliacus 443 94.46 141 Blackbird Turdus merula 462 98.51 142 Fieldfare Turdus pilaris 422 89.98 143 Spotted Flycatcher Muscicapa striata 330 70.36 144 Robin Erithacus rubecula 462 98.51 145 Redstart Phoenicurus phoenicurus 335 71.43 146 Whinchat Saxicola rubetra 302 64.39 147 Stonechat Saxicola rubicola 432 92.11 148 Wheatear Oenanthe oenanthe 409 87.21 149 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 Bullfinch Pyrrhula pyrrhula 429 91.47 157 Greenfinch Chloris chloris 453 96.59 158 Twite Linaria flavirostris 178 37.95 159 Linnet Linaria cannabina 437 93.18 160 Lesser Redpoll Acanthis cabaret 341 72.71 161 Goldfinch Carduelis carduelis 454 96.80 162 Siskin Spinus spinus 414 88.27 163 Corn Bunting Emberiza calandra 289 61.62 164 Yellowhammer Emberiza citrinella 407 86.78 165 Reed Bunting Emberiza schoeniclus 439 93.60