Matt Doyle: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 225 of 225 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 Tundra Bean Goose Anser serrirostris 83 17.70 5 White-fronted Goose Anser albifrons 238 50.75 6 Mute Swan Cygnus olor 461 98.29 7 Bewick's Swan Cygnus columbianus 135 28.78 8 Whooper Swan Cygnus cygnus 310 66.10 9 Egyptian Goose Alopochen aegyptiaca 370 78.89 10 Shelduck Tadorna tadorna 441 94.03 11 Mandarin Duck Aix galericulata 310 66.10 12 Garganey Spatula querquedula 282 60.13 13 Shoveler Spatula clypeata 444 94.67 14 Gadwall Mareca strepera 442 94.24 15 Wigeon Mareca penelope 442 94.24 16 Mallard Anas platyrhynchos 461 98.29 17 Pintail Anas acuta 390 83.16 18 Teal Anas crecca 445 94.88 19 Red-crested Pochard Netta rufina 170 36.25 20 Pochard Aythya ferina 426 90.83 21 Ring-necked Duck Aythya collaris 190 40.51 22 Tufted Duck Aythya fuligula 457 97.44 23 Scaup Aythya marila 244 52.03 24 Eider Somateria mollissima 333 71.00 25 Common Scoter Melanitta nigra 347 73.99 26 Goldeneye Bucephala clangula 383 81.66 27 Goosander Mergus merganser 390 83.16 28 Red-breasted Merganser Mergus serrator 324 69.08 29 Pheasant Phasianus colchicus 454 96.80 30 Red-legged Partridge Alectoris rufa 400 85.29 31 Swift Apus apus 430 91.68 32 Cuckoo Cuculus canorus 382 81.45 33 Rock Dove (Feral Pigeon) Columba livia 403 85.93 34 Stock Dove Columba oenas 416 88.70 35 Woodpigeon Columba palumbus 463 98.72 36 Collared Dove Streptopelia decaocto 453 96.59 37 Water Rail Rallus aquaticus 353 75.27 38 Moorhen Gallinula chloropus 458 97.65 39 Coot Fulica atra 456 97.23 40 Little Grebe Tachybaptus ruficollis 443 94.46 41 Great Crested Grebe Podiceps cristatus 447 95.31 42 Slavonian Grebe Podiceps auritus 235 50.11 43 Stone-curlew Burhinus oedicnemus 168 35.82 44 Oystercatcher Haematopus ostralegus 448 95.52 45 Avocet Recurvirostra avosetta 394 84.01 46 Grey Plover Pluvialis squatarola 343 73.13 47 Golden Plover Pluvialis apricaria 389 82.94 48 American Golden Plover Pluvialis dominica 73 15.57 49 Dotterel Eudromias morinellus 109 23.24 50 Ringed Plover Charadrius hiaticula 399 85.07 51 Little Ringed Plover Charadrius dubius 360 76.76 52 Lapwing Vanellus vanellus 453 96.59 53 Eurasian Whimbrel Numenius phaeopus 349 74.41 54 Curlew Numenius arquata 436 92.96 55 Bar-tailed Godwit Limosa lapponica 368 78.46 56 Black-tailed Godwit Limosa limosa 411 87.63 57 Long-billed Dowitcher Limnodromus scolopaceus 42 8.96 58 Woodcock Scolopax rusticola 291 62.05 59 Snipe Gallinago gallinago 413 88.06 60 Grey Phalarope Phalaropus fulicarius 114 24.31 61 Common Sandpiper Actitis hypoleucos 397 84.65 62 Green Sandpiper Tringa ochropus 351 74.84 63 Wood Sandpiper Tringa glareola 270 57.57 64 Redshank Tringa totanus 434 92.54 65 Spotted Redshank Tringa erythropus 331 70.58 66 Greenshank Tringa nebularia 382 81.45 67 Turnstone Arenaria interpres 411 87.63 68 Knot Calidris canutus 349 74.41 69 Ruff Calidris pugnax 369 78.68 70 Sanderling Calidris alba 369 78.68 71 Dunlin Calidris alpina 418 89.13 72 Purple Sandpiper Calidris maritima 265 56.50 73 Baird's Sandpiper Calidris bairdii 20 4.26 74 Little Stint Calidris minuta 290 61.83 75 Pectoral Sandpiper Calidris melanotos 177 37.74 76 Western Sandpiper Calidris mauri 59 12.58 77 Little Tern Sternula albifrons 286 60.98 78 Whiskered Tern Chlidonias hybrida 35 7.46 79 Arctic Tern Sterna paradisaea 290 61.83 80 Common Tern Sterna hirundo 407 86.78 81 Sandwich Tern Thalasseus sandvicensis 372 79.32 82 Little Gull Hydrocoloeus minutus 281 59.91 83 Kittiwake Rissa tridactyla 382 81.45 84 Black-headed Gull Chroicocephalus ridibundus 460 98.08 85 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 86 Common Gull Larus canus 418 89.13 87 Ring-billed Gull Larus delawarensis 21 4.48 88 Caspian Gull Larus cachinnans 184 39.23 89 Herring Gull Larus argentatus 457 97.44 90 Yellow-legged Gull Larus michahellis 226 48.19 91 Great Black-backed Gull Larus marinus 433 92.32 92 Lesser Black-backed Gull Larus fuscus 448 95.52 93 American Herring Gull Larus smithsonianus 51 10.87 94 Arctic Skua Stercorarius parasiticus 204 43.50 95 Great Skua Stercorarius skua 216 46.06 96 Puffin Fratercula arctica 305 65.03 97 Razorbill Alca torda 377 80.38 98 Little Auk Alle alle 98 20.90 99 Common Guillemot Uria aalge 387 82.52 100 Red-throated Diver Gavia stellata 330 70.36 101 Black-throated Diver Gavia arctica 178 37.95 102 Pacific Diver Gavia pacifica 30 6.40 103 Great Northern Diver Gavia immer 287 61.19 104 Storm Petrel Hydrobates pelagicus 79 16.84 105 Fulmar Fulmarus glacialis 389 82.94 106 Sooty Shearwater Ardenna grisea 126 26.87 107 Great Shearwater Ardenna gravis 38 8.10 108 Manx Shearwater Puffinus puffinus 246 52.45 109 Balearic Shearwater Puffinus mauretanicus 94 20.04 110 Gannet Morus bassanus 405 86.35 111 Cormorant Phalacrocorax carbo 457 97.44 112 Shag Gulosus aristotelis 370 78.89 113 Glossy Ibis Plegadis falcinellus 213 45.42 114 Spoonbill Platalea leucorodia 335 71.43 115 Bittern Botaurus stellaris 294 62.69 116 Little Egret Egretta garzetta 444 94.67 117 Cattle Egret Bubulcus ibis 300 63.97 118 Great White Egret Ardea alba 387 82.52 119 Grey Heron Ardea cinerea 454 96.80 120 Osprey Pandion haliaetus 294 62.69 121 Sparrowhawk Accipiter nisus 443 94.46 122 Goshawk Accipiter gentilis 195 41.58 123 Marsh Harrier Circus aeruginosus 406 86.57 124 Hen Harrier Circus cyaneus 227 48.40 125 Red Kite Milvus milvus 434 92.54 126 White-tailed Eagle Haliaeetus albicilla 114 24.31 127 Buzzard Buteo buteo 457 97.44 128 Barn Owl Tyto alba 371 79.10 129 Little Owl Athene noctua 281 59.91 130 Short-eared Owl Asio flammeus 262 55.86 131 Tawny Owl Strix aluco 364 77.61 132 Hoopoe Upupa epops 92 19.62 133 Kingfisher Alcedo atthis 410 87.42 134 Lesser Spotted Woodpecker Dryobates minor 117 24.95 135 Great Spotted Woodpecker Dendrocopos major 443 94.46 136 Green Woodpecker Picus viridis 395 84.22 137 Kestrel Falco tinnunculus 453 96.59 138 Red-footed Falcon Falco vespertinus 32 6.82 139 Merlin Falco columbarius 275 58.64 140 Hobby Falco subbuteo 347 73.99 141 Peregrine Falco peregrinus 421 89.77 142 Great Grey Shrike Lanius excubitor 67 14.29 143 Brown Shrike Lanius cristatus 15 3.20 144 Jay Garrulus glandarius 447 95.31 145 Magpie Pica pica 460 98.08 146 Chough Pyrrhocorax pyrrhocorax 194 41.36 147 Jackdaw Coloeus monedula 459 97.87 148 Rook Corvus frugilegus 453 96.59 149 Carrion Crow Corvus corone 460 98.08 150 Hooded Crow Corvus cornix 193 41.15 151 Raven Corvus corax 415 88.49 152 Coal Tit Periparus ater 446 95.10 153 Crested Tit Lophophanes cristatus 63 13.43 154 Marsh Tit Poecile palustris 318 67.80 155 Willow Tit Poecile montanus 179 38.17 156 Blue Tit Cyanistes caeruleus 463 98.72 157 Great Tit Parus major 461 98.29 158 Penduline Tit Remiz pendulinus 25 5.33 159 Bearded Tit Panurus biarmicus 299 63.75 160 Skylark Alauda arvensis 440 93.82 161 Sand Martin Riparia riparia 426 90.83 162 Swallow Hirundo rustica 437 93.18 163 House Martin Delichon urbicum 432 92.11 164 Cetti's Warbler Cettia cetti 387 82.52 165 Long-tailed Tit Aegithalos caudatus 453 96.59 166 Sulphur-bellied Warbler Phylloscopus griseolus 4 0.85 167 Willow Warbler Phylloscopus trochilus 415 88.49 168 Chiffchaff Phylloscopus collybita 441 94.03 169 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 170 Blyth's Reed Warbler Acrocephalus dumetorum 43 9.17 171 Reed Warbler Acrocephalus scirpaceus 399 85.07 172 River Warbler Locustella fluviatilis 128 27.29 173 Savi's Warbler Locustella luscinioides 60 12.79 174 Grasshopper Warbler Locustella naevia 264 56.29 175 Blackcap Sylvia atricapilla 437 93.18 176 Garden Warbler Sylvia borin 343 73.13 177 Lesser Whitethroat Curruca curruca 332 70.79 178 Whitethroat Curruca communis 421 89.77 179 Dartford Warbler Curruca undata 184 39.23 180 Firecrest Regulus ignicapilla 198 42.22 181 Goldcrest Regulus regulus 427 91.04 182 Wren Troglodytes troglodytes 458 97.65 183 Nuthatch Sitta europaea 431 91.90 184 Treecreeper Certhia familiaris 420 89.55 185 Northern Mockingbird Mimus polyglottos 132 28.14 186 Starling Sturnus vulgaris 458 97.65 187 Song Thrush Turdus philomelos 454 96.80 188 Mistle Thrush Turdus viscivorus 437 93.18 189 Redwing Turdus iliacus 443 94.46 190 Blackbird Turdus merula 462 98.51 191 Fieldfare Turdus pilaris 422 89.98 192 Ring Ouzel Turdus torquatus 261 55.65 193 Rufous-tailed Scrub Robin Cercotrichas galactotes 19 4.05 194 Spotted Flycatcher Muscicapa striata 330 70.36 195 Robin Erithacus rubecula 462 98.51 196 Nightingale Luscinia megarhynchos 158 33.69 197 Pied Flycatcher Ficedula hypoleuca 286 60.98 198 Redstart Phoenicurus phoenicurus 335 71.43 199 Stonechat Saxicola rubicola 432 92.11 200 Wheatear Oenanthe oenanthe 409 87.21 201 Desert Wheatear Oenanthe deserti 9 1.92 202 House Sparrow Passer domesticus 458 97.65 203 Dunnock Prunella modularis 462 98.51 204 Yellow Wagtail Motacilla flava 368 78.46 205 Grey Wagtail Motacilla cinerea 440 93.82 206 Pied Wagtail Motacilla alba 460 98.08 207 Meadow Pipit Anthus pratensis 434 92.54 208 Tree Pipit Anthus trivialis 307 65.46 209 Water Pipit Anthus spinoletta 155 33.05 210 Rock Pipit Anthus petrosus 372 79.32 211 Chaffinch Fringilla coelebs 457 97.44 212 Brambling Fringilla montifringilla 310 66.10 213 Hawfinch Coccothraustes coccothraustes 170 36.25 214 Bullfinch Pyrrhula pyrrhula 429 91.47 215 Greenfinch Chloris chloris 453 96.59 216 Linnet Linaria cannabina 437 93.18 217 Common Redpoll Acanthis flammea 79 16.84 218 Lesser Redpoll Acanthis cabaret 341 72.71 219 Common Crossbill Loxia curvirostra 263 56.08 220 Goldfinch Carduelis carduelis 454 96.80 221 Siskin Spinus spinus 414 88.27 222 Snow Bunting Plectrophenax nivalis 254 54.16 223 Corn Bunting Emberiza calandra 289 61.62 224 Yellowhammer Emberiza citrinella 407 86.78 225 Reed Bunting Emberiza schoeniclus 439 93.60