Amy Schwartz: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 143 of 143 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 Mute Swan Cygnus olor 461 98.29 4 Egyptian Goose Alopochen aegyptiaca 370 78.89 5 Shelduck Tadorna tadorna 441 94.03 6 Shoveler Spatula clypeata 444 94.67 7 Gadwall Mareca strepera 442 94.24 8 Wigeon Mareca penelope 442 94.24 9 Mallard Anas platyrhynchos 461 98.29 10 Teal Anas crecca 445 94.88 11 Red-crested Pochard Netta rufina 170 36.25 12 Pochard Aythya ferina 426 90.83 13 Ring-necked Duck Aythya collaris 190 40.51 14 Tufted Duck Aythya fuligula 457 97.44 15 Goldeneye Bucephala clangula 383 81.66 16 Goosander Mergus merganser 390 83.16 17 Ruddy Duck Oxyura jamaicensis 35 7.46 18 Pheasant Phasianus colchicus 454 96.80 19 Red-legged Partridge Alectoris rufa 400 85.29 20 Swift Apus apus 430 91.68 21 Cuckoo Cuculus canorus 382 81.45 22 Rock Dove (Feral Pigeon) Columba livia 403 85.93 23 Woodpigeon Columba palumbus 463 98.72 24 Collared Dove Streptopelia decaocto 453 96.59 25 Water Rail Rallus aquaticus 353 75.27 26 Moorhen Gallinula chloropus 458 97.65 27 Coot Fulica atra 456 97.23 28 Crane Grus grus 199 42.43 29 Little Grebe Tachybaptus ruficollis 443 94.46 30 Great Crested Grebe Podiceps cristatus 447 95.31 31 Slavonian Grebe Podiceps auritus 235 50.11 32 Oystercatcher Haematopus ostralegus 448 95.52 33 Avocet Recurvirostra avosetta 394 84.01 34 Ringed Plover Charadrius hiaticula 399 85.07 35 Lapwing Vanellus vanellus 453 96.59 36 Eurasian Whimbrel Numenius phaeopus 349 74.41 37 Curlew Numenius arquata 436 92.96 38 Bar-tailed Godwit Limosa lapponica 368 78.46 39 Black-tailed Godwit Limosa limosa 411 87.63 40 Long-billed Dowitcher Limnodromus scolopaceus 42 8.96 41 Snipe Gallinago gallinago 413 88.06 42 Common Sandpiper Actitis hypoleucos 397 84.65 43 Green Sandpiper Tringa ochropus 351 74.84 44 Redshank Tringa totanus 434 92.54 45 Spotted Redshank Tringa erythropus 331 70.58 46 Greenshank Tringa nebularia 382 81.45 47 Turnstone Arenaria interpres 411 87.63 48 Ruff Calidris pugnax 369 78.68 49 Curlew Sandpiper Calidris ferruginea 259 55.22 50 Dunlin Calidris alpina 418 89.13 51 Purple Sandpiper Calidris maritima 265 56.50 52 Little Stint Calidris minuta 290 61.83 53 Pectoral Sandpiper Calidris melanotos 177 37.74 54 Common Tern Sterna hirundo 407 86.78 55 Bonaparte's Gull Chroicocephalus philadelphia 107 22.81 56 Black-headed Gull Chroicocephalus ridibundus 460 98.08 57 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 58 Common Gull Larus canus 418 89.13 59 Herring Gull Larus argentatus 457 97.44 60 Great Black-backed Gull Larus marinus 433 92.32 61 Lesser Black-backed Gull Larus fuscus 448 95.52 62 Cormorant Phalacrocorax carbo 457 97.44 63 Glossy Ibis Plegadis falcinellus 213 45.42 64 Spoonbill Platalea leucorodia 335 71.43 65 Bittern Botaurus stellaris 294 62.69 66 Little Egret Egretta garzetta 444 94.67 67 Great White Egret Ardea alba 387 82.52 68 Grey Heron Ardea cinerea 454 96.80 69 Osprey Pandion haliaetus 294 62.69 70 Sparrowhawk Accipiter nisus 443 94.46 71 Goshawk Accipiter gentilis 195 41.58 72 Marsh Harrier Circus aeruginosus 406 86.57 73 Red Kite Milvus milvus 434 92.54 74 Buzzard Buteo buteo 457 97.44 75 Barn Owl Tyto alba 371 79.10 76 Tawny Owl Strix aluco 364 77.61 77 Hoopoe Upupa epops 92 19.62 78 Kingfisher Alcedo atthis 410 87.42 79 Great Spotted Woodpecker Dendrocopos major 443 94.46 80 Green Woodpecker Picus viridis 395 84.22 81 Kestrel Falco tinnunculus 453 96.59 82 Hobby Falco subbuteo 347 73.99 83 Peregrine Falco peregrinus 421 89.77 84 Ring-necked Parakeet Psittacula krameri 290 61.83 85 Jay Garrulus glandarius 447 95.31 86 Magpie Pica pica 460 98.08 87 Chough Pyrrhocorax pyrrhocorax 194 41.36 88 Jackdaw Coloeus monedula 459 97.87 89 Rook Corvus frugilegus 453 96.59 90 Carrion Crow Corvus corone 460 98.08 91 Raven Corvus corax 415 88.49 92 Coal Tit Periparus ater 446 95.10 93 Marsh Tit Poecile palustris 318 67.80 94 Blue Tit Cyanistes caeruleus 463 98.72 95 Great Tit Parus major 461 98.29 96 Skylark Alauda arvensis 440 93.82 97 Sand Martin Riparia riparia 426 90.83 98 Swallow Hirundo rustica 437 93.18 99 House Martin Delichon urbicum 432 92.11 100 Cetti's Warbler Cettia cetti 387 82.52 101 Long-tailed Tit Aegithalos caudatus 453 96.59 102 Willow Warbler Phylloscopus trochilus 415 88.49 103 Chiffchaff Phylloscopus collybita 441 94.03 104 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 105 Reed Warbler Acrocephalus scirpaceus 399 85.07 106 River Warbler Locustella fluviatilis 128 27.29 107 Grasshopper Warbler Locustella naevia 264 56.29 108 Blackcap Sylvia atricapilla 437 93.18 109 Garden Warbler Sylvia borin 343 73.13 110 Whitethroat Curruca communis 421 89.77 111 Goldcrest Regulus regulus 427 91.04 112 Wren Troglodytes troglodytes 458 97.65 113 Nuthatch Sitta europaea 431 91.90 114 Treecreeper Certhia familiaris 420 89.55 115 Starling Sturnus vulgaris 458 97.65 116 Song Thrush Turdus philomelos 454 96.80 117 Mistle Thrush Turdus viscivorus 437 93.18 118 Redwing Turdus iliacus 443 94.46 119 Blackbird Turdus merula 462 98.51 120 Fieldfare Turdus pilaris 422 89.98 121 Spotted Flycatcher Muscicapa striata 330 70.36 122 Robin Erithacus rubecula 462 98.51 123 Whinchat Saxicola rubetra 302 64.39 124 Stonechat Saxicola rubicola 432 92.11 125 Wheatear Oenanthe oenanthe 409 87.21 126 Dipper Cinclus cinclus 289 61.62 127 House Sparrow Passer domesticus 458 97.65 128 Dunnock Prunella modularis 462 98.51 129 Yellow Wagtail Motacilla flava 368 78.46 130 Grey Wagtail Motacilla cinerea 440 93.82 131 Pied Wagtail Motacilla alba 460 98.08 132 Meadow Pipit Anthus pratensis 434 92.54 133 Tree Pipit Anthus trivialis 307 65.46 134 Rock Pipit Anthus petrosus 372 79.32 135 Chaffinch Fringilla coelebs 457 97.44 136 Hawfinch Coccothraustes coccothraustes 170 36.25 137 Bullfinch Pyrrhula pyrrhula 429 91.47 138 Greenfinch Chloris chloris 453 96.59 139 Linnet Linaria cannabina 437 93.18 140 Goldfinch Carduelis carduelis 454 96.80 141 Siskin Spinus spinus 414 88.27 142 Yellowhammer Emberiza citrinella 407 86.78 143 Reed Bunting Emberiza schoeniclus 439 93.60