Brian Anderson: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 240 of 240 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 White-fronted Goose Anser albifrons 238 50.75 7 Mute Swan Cygnus olor 461 98.29 8 Egyptian Goose Alopochen aegyptiaca 370 78.89 9 Shelduck Tadorna tadorna 441 94.03 10 Mandarin Duck Aix galericulata 310 66.10 11 Garganey Spatula querquedula 282 60.13 12 Shoveler Spatula clypeata 444 94.67 13 Gadwall Mareca strepera 442 94.24 14 Wigeon Mareca penelope 442 94.24 15 Mallard Anas platyrhynchos 461 98.29 16 Pintail Anas acuta 390 83.16 17 Teal Anas crecca 445 94.88 18 Green-winged Teal Anas carolinensis 74 15.78 19 Pochard Aythya ferina 426 90.83 20 Ring-necked Duck Aythya collaris 190 40.51 21 Tufted Duck Aythya fuligula 457 97.44 22 Scaup Aythya marila 244 52.03 23 Eider Somateria mollissima 333 71.00 24 Velvet Scoter Melanitta fusca 171 36.46 25 Common Scoter Melanitta nigra 347 73.99 26 Long-tailed Duck Clangula hyemalis 205 43.71 27 Goldeneye Bucephala clangula 383 81.66 28 Smew Mergellus albellus 159 33.90 29 Goosander Mergus merganser 390 83.16 30 Red-breasted Merganser Mergus serrator 324 69.08 31 Grey Partridge Perdix perdix 294 62.69 32 Pheasant Phasianus colchicus 454 96.80 33 Quail Coturnix coturnix 87 18.55 34 Red-legged Partridge Alectoris rufa 400 85.29 35 Nightjar Caprimulgus europaeus 205 43.71 36 Swift Apus apus 430 91.68 37 Cuckoo Cuculus canorus 382 81.45 38 Rock Dove (Feral Pigeon) Columba livia 403 85.93 39 Stock Dove Columba oenas 416 88.70 40 Woodpigeon Columba palumbus 463 98.72 41 Turtle Dove Streptopelia turtur 172 36.67 42 Collared Dove Streptopelia decaocto 453 96.59 43 Water Rail Rallus aquaticus 353 75.27 44 Moorhen Gallinula chloropus 458 97.65 45 Coot Fulica atra 456 97.23 46 Crane Grus grus 199 42.43 47 Little Grebe Tachybaptus ruficollis 443 94.46 48 Red-necked Grebe Podiceps grisegena 141 30.06 49 Great Crested Grebe Podiceps cristatus 447 95.31 50 Slavonian Grebe Podiceps auritus 235 50.11 51 Black-necked Grebe Podiceps nigricollis 255 54.37 52 Stone-curlew Burhinus oedicnemus 168 35.82 53 Oystercatcher Haematopus ostralegus 448 95.52 54 Avocet Recurvirostra avosetta 394 84.01 55 Grey Plover Pluvialis squatarola 343 73.13 56 Golden Plover Pluvialis apricaria 389 82.94 57 Pacific Golden Plover Pluvialis fulva 133 28.36 58 Dotterel Eudromias morinellus 109 23.24 59 Ringed Plover Charadrius hiaticula 399 85.07 60 Little Ringed Plover Charadrius dubius 360 76.76 61 Lapwing Vanellus vanellus 453 96.59 62 White-tailed Plover Vanellus leucurus 200 42.64 63 Eurasian Whimbrel Numenius phaeopus 349 74.41 64 Curlew Numenius arquata 436 92.96 65 Bar-tailed Godwit Limosa lapponica 368 78.46 66 Black-tailed Godwit Limosa limosa 411 87.63 67 Jack Snipe Lymnocryptes minimus 232 49.47 68 Woodcock Scolopax rusticola 291 62.05 69 Snipe Gallinago gallinago 413 88.06 70 Grey Phalarope Phalaropus fulicarius 114 24.31 71 Common Sandpiper Actitis hypoleucos 397 84.65 72 Green Sandpiper Tringa ochropus 351 74.84 73 Wood Sandpiper Tringa glareola 270 57.57 74 Redshank Tringa totanus 434 92.54 75 Spotted Redshank Tringa erythropus 331 70.58 76 Greenshank Tringa nebularia 382 81.45 77 Turnstone Arenaria interpres 411 87.63 78 Knot Calidris canutus 349 74.41 79 Ruff Calidris pugnax 369 78.68 80 Curlew Sandpiper Calidris ferruginea 259 55.22 81 Long-toed Stint Calidris subminuta 128 27.29 82 Sanderling Calidris alba 369 78.68 83 Dunlin Calidris alpina 418 89.13 84 Purple Sandpiper Calidris maritima 265 56.50 85 Little Stint Calidris minuta 290 61.83 86 White-rumped Sandpiper Calidris fuscicollis 37 7.89 87 Pectoral Sandpiper Calidris melanotos 177 37.74 88 Western Sandpiper Calidris mauri 59 12.58 89 Collared Pratincole Glareola pratincola 60 12.79 90 Little Tern Sternula albifrons 286 60.98 91 Whiskered Tern Chlidonias hybrida 35 7.46 92 Arctic Tern Sterna paradisaea 290 61.83 93 Common Tern Sterna hirundo 407 86.78 94 Sandwich Tern Thalasseus sandvicensis 372 79.32 95 Little Gull Hydrocoloeus minutus 281 59.91 96 Kittiwake Rissa tridactyla 382 81.45 97 Bonaparte's Gull Chroicocephalus philadelphia 107 22.81 98 Black-headed Gull Chroicocephalus ridibundus 460 98.08 99 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 100 Common Gull Larus canus 418 89.13 101 Caspian Gull Larus cachinnans 184 39.23 102 Herring Gull Larus argentatus 457 97.44 103 Yellow-legged Gull Larus michahellis 226 48.19 104 Great Black-backed Gull Larus marinus 433 92.32 105 Lesser Black-backed Gull Larus fuscus 448 95.52 106 American Herring Gull Larus smithsonianus 51 10.87 107 Iceland Gull Larus glaucoides 158 33.69 108 Arctic Skua Stercorarius parasiticus 204 43.50 109 Great Skua Stercorarius skua 216 46.06 110 Puffin Fratercula arctica 305 65.03 111 Black Guillemot Cepphus grylle 206 43.92 112 Razorbill Alca torda 377 80.38 113 Common Guillemot Uria aalge 387 82.52 114 Red-throated Diver Gavia stellata 330 70.36 115 Pacific Diver Gavia pacifica 30 6.40 116 Great Northern Diver Gavia immer 287 61.19 117 Black-browed Albatross Thalassarche melanophris 200 42.64 118 Fulmar Fulmarus glacialis 389 82.94 119 Black Stork Ciconia nigra 82 17.48 120 White Stork Ciconia ciconia 64 13.65 121 Gannet Morus bassanus 405 86.35 122 Cormorant Phalacrocorax carbo 457 97.44 123 Shag Gulosus aristotelis 370 78.89 124 Glossy Ibis Plegadis falcinellus 213 45.42 125 Spoonbill Platalea leucorodia 335 71.43 126 Bittern Botaurus stellaris 294 62.69 127 Little Egret Egretta garzetta 444 94.67 128 Cattle Egret Bubulcus ibis 300 63.97 129 Great White Egret Ardea alba 387 82.52 130 Grey Heron Ardea cinerea 454 96.80 131 Purple Heron Ardea purpurea 53 11.30 132 Osprey Pandion haliaetus 294 62.69 133 Sparrowhawk Accipiter nisus 443 94.46 134 Goshawk Accipiter gentilis 195 41.58 135 Marsh Harrier Circus aeruginosus 406 86.57 136 Hen Harrier Circus cyaneus 227 48.40 137 Red Kite Milvus milvus 434 92.54 138 White-tailed Eagle Haliaeetus albicilla 114 24.31 139 Buzzard Buteo buteo 457 97.44 140 Barn Owl Tyto alba 371 79.10 141 Little Owl Athene noctua 281 59.91 142 Short-eared Owl Asio flammeus 262 55.86 143 Tawny Owl Strix aluco 364 77.61 144 Roller Coracias garrulus 113 24.09 145 Kingfisher Alcedo atthis 410 87.42 146 Bee-eater Merops apiaster 54 11.51 147 Wryneck Jynx torquilla 108 23.03 148 Lesser Spotted Woodpecker Dryobates minor 117 24.95 149 Great Spotted Woodpecker Dendrocopos major 443 94.46 150 Green Woodpecker Picus viridis 395 84.22 151 Kestrel Falco tinnunculus 453 96.59 152 Merlin Falco columbarius 275 58.64 153 Hobby Falco subbuteo 347 73.99 154 Peregrine Falco peregrinus 421 89.77 155 Ring-necked Parakeet Psittacula krameri 290 61.83 156 Woodchat Shrike Lanius senator 99 21.11 157 Jay Garrulus glandarius 447 95.31 158 Magpie Pica pica 460 98.08 159 Chough Pyrrhocorax pyrrhocorax 194 41.36 160 Jackdaw Coloeus monedula 459 97.87 161 Rook Corvus frugilegus 453 96.59 162 Carrion Crow Corvus corone 460 98.08 163 Raven Corvus corax 415 88.49 164 Coal Tit Periparus ater 446 95.10 165 Marsh Tit Poecile palustris 318 67.80 166 Blue Tit Cyanistes caeruleus 463 98.72 167 Great Tit Parus major 461 98.29 168 Bearded Tit Panurus biarmicus 299 63.75 169 Woodlark Lullula arborea 210 44.78 170 Skylark Alauda arvensis 440 93.82 171 Shore Lark Eremophila alpestris 122 26.01 172 Short-toed Lark Calandrella brachydactyla 37 7.89 173 Sand Martin Riparia riparia 426 90.83 174 Swallow Hirundo rustica 437 93.18 175 House Martin Delichon urbicum 432 92.11 176 Cetti's Warbler Cettia cetti 387 82.52 177 Long-tailed Tit Aegithalos caudatus 453 96.59 178 Dusky Warbler Phylloscopus fuscatus 60 12.79 179 Willow Warbler Phylloscopus trochilus 415 88.49 180 Chiffchaff Phylloscopus collybita 441 94.03 181 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 182 Reed Warbler Acrocephalus scirpaceus 399 85.07 183 River Warbler Locustella fluviatilis 128 27.29 184 Grasshopper Warbler Locustella naevia 264 56.29 185 Blackcap Sylvia atricapilla 437 93.18 186 Garden Warbler Sylvia borin 343 73.13 187 Lesser Whitethroat Curruca curruca 332 70.79 188 Whitethroat Curruca communis 421 89.77 189 Dartford Warbler Curruca undata 184 39.23 190 Firecrest Regulus ignicapilla 198 42.22 191 Goldcrest Regulus regulus 427 91.04 192 Wren Troglodytes troglodytes 458 97.65 193 Nuthatch Sitta europaea 431 91.90 194 Treecreeper Certhia familiaris 420 89.55 195 Northern Mockingbird Mimus polyglottos 132 28.14 196 Starling Sturnus vulgaris 458 97.65 197 Song Thrush Turdus philomelos 454 96.80 198 Mistle Thrush Turdus viscivorus 437 93.18 199 Redwing Turdus iliacus 443 94.46 200 Blackbird Turdus merula 462 98.51 201 Fieldfare Turdus pilaris 422 89.98 202 Ring Ouzel Turdus torquatus 261 55.65 203 Spotted Flycatcher Muscicapa striata 330 70.36 204 Robin Erithacus rubecula 462 98.51 205 Nightingale Luscinia megarhynchos 158 33.69 206 Taiga Flycatcher Ficedula albicilla 47 10.02 207 Pied Flycatcher Ficedula hypoleuca 286 60.98 208 Red-flanked Bluetail Tarsiger cyanurus 52 11.09 209 Black Redstart Phoenicurus ochruros 230 49.04 210 Redstart Phoenicurus phoenicurus 335 71.43 211 Whinchat Saxicola rubetra 302 64.39 212 Stonechat Saxicola rubicola 432 92.11 213 Wheatear Oenanthe oenanthe 409 87.21 214 Tree Sparrow Passer montanus 328 69.94 215 House Sparrow Passer domesticus 458 97.65 216 Dunnock Prunella modularis 462 98.51 217 Yellow Wagtail Motacilla flava 368 78.46 218 Grey Wagtail Motacilla cinerea 440 93.82 219 Pied Wagtail Motacilla alba 460 98.08 220 Meadow Pipit Anthus pratensis 434 92.54 221 Tree Pipit Anthus trivialis 307 65.46 222 Water Pipit Anthus spinoletta 155 33.05 223 Rock Pipit Anthus petrosus 372 79.32 224 Chaffinch Fringilla coelebs 457 97.44 225 Brambling Fringilla montifringilla 310 66.10 226 Hawfinch Coccothraustes coccothraustes 170 36.25 227 Bullfinch Pyrrhula pyrrhula 429 91.47 228 Greenfinch Chloris chloris 453 96.59 229 Twite Linaria flavirostris 178 37.95 230 Linnet Linaria cannabina 437 93.18 231 Lesser Redpoll Acanthis cabaret 341 72.71 232 Common Crossbill Loxia curvirostra 263 56.08 233 Goldfinch Carduelis carduelis 454 96.80 234 Siskin Spinus spinus 414 88.27 235 Snow Bunting Plectrophenax nivalis 254 54.16 236 Corn Bunting Emberiza calandra 289 61.62 237 Yellowhammer Emberiza citrinella 407 86.78 238 Little Bunting Emberiza pusilla 110 23.45 239 Reed Bunting Emberiza schoeniclus 439 93.60 240 White-throated Sparrow Zonotrichia albicollis 63 13.43