Nathaniel Dargue: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 264 of 264 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 Bewick's Swan Cygnus columbianus 135 28.78 9 Whooper Swan Cygnus cygnus 310 66.10 10 Egyptian Goose Alopochen aegyptiaca 370 78.89 11 Shelduck Tadorna tadorna 441 94.03 12 Mandarin Duck Aix galericulata 310 66.10 13 Garganey Spatula querquedula 282 60.13 14 Shoveler Spatula clypeata 444 94.67 15 Gadwall Mareca strepera 442 94.24 16 Wigeon Mareca penelope 442 94.24 17 American Wigeon Mareca americana 68 14.50 18 Mallard Anas platyrhynchos 461 98.29 19 Pintail Anas acuta 390 83.16 20 Teal Anas crecca 445 94.88 21 Red-crested Pochard Netta rufina 170 36.25 22 Pochard Aythya ferina 426 90.83 23 Ring-necked Duck Aythya collaris 190 40.51 24 Tufted Duck Aythya fuligula 457 97.44 25 Scaup Aythya marila 244 52.03 26 Eider Somateria mollissima 333 71.00 27 Velvet Scoter Melanitta fusca 171 36.46 28 Common Scoter Melanitta nigra 347 73.99 29 Long-tailed Duck Clangula hyemalis 205 43.71 30 Goldeneye Bucephala clangula 383 81.66 31 Goosander Mergus merganser 390 83.16 32 Red-breasted Merganser Mergus serrator 324 69.08 33 Red Grouse Lagopus lagopus 209 44.56 34 Grey Partridge Perdix perdix 294 62.69 35 Pheasant Phasianus colchicus 454 96.80 36 Red-legged Partridge Alectoris rufa 400 85.29 37 Nightjar Caprimulgus europaeus 205 43.71 38 Swift Apus apus 430 91.68 39 Cuckoo Cuculus canorus 382 81.45 40 Rock Dove (Feral Pigeon) Columba livia 403 85.93 41 Stock Dove Columba oenas 416 88.70 42 Woodpigeon Columba palumbus 463 98.72 43 Turtle Dove Streptopelia turtur 172 36.67 44 Collared Dove Streptopelia decaocto 453 96.59 45 Water Rail Rallus aquaticus 353 75.27 46 Moorhen Gallinula chloropus 458 97.65 47 Coot Fulica atra 456 97.23 48 Crane Grus grus 199 42.43 49 Little Grebe Tachybaptus ruficollis 443 94.46 50 Red-necked Grebe Podiceps grisegena 141 30.06 51 Great Crested Grebe Podiceps cristatus 447 95.31 52 Slavonian Grebe Podiceps auritus 235 50.11 53 Black-necked Grebe Podiceps nigricollis 255 54.37 54 Stone-curlew Burhinus oedicnemus 168 35.82 55 Oystercatcher Haematopus ostralegus 448 95.52 56 Black-winged Stilt Himantopus himantopus 82 17.48 57 Avocet Recurvirostra avosetta 394 84.01 58 Grey Plover Pluvialis squatarola 343 73.13 59 Golden Plover Pluvialis apricaria 389 82.94 60 Pacific Golden Plover Pluvialis fulva 133 28.36 61 Ringed Plover Charadrius hiaticula 399 85.07 62 Little Ringed Plover Charadrius dubius 360 76.76 63 Lapwing Vanellus vanellus 453 96.59 64 White-tailed Plover Vanellus leucurus 200 42.64 65 Eurasian Whimbrel Numenius phaeopus 349 74.41 66 Curlew Numenius arquata 436 92.96 67 Bar-tailed Godwit Limosa lapponica 368 78.46 68 Black-tailed Godwit Limosa limosa 411 87.63 69 Long-billed Dowitcher Limnodromus scolopaceus 42 8.96 70 Jack Snipe Lymnocryptes minimus 232 49.47 71 Woodcock Scolopax rusticola 291 62.05 72 Snipe Gallinago gallinago 413 88.06 73 Grey Phalarope Phalaropus fulicarius 114 24.31 74 Common Sandpiper Actitis hypoleucos 397 84.65 75 Green Sandpiper Tringa ochropus 351 74.84 76 Wood Sandpiper Tringa glareola 270 57.57 77 Redshank Tringa totanus 434 92.54 78 Spotted Redshank Tringa erythropus 331 70.58 79 Greenshank Tringa nebularia 382 81.45 80 Turnstone Arenaria interpres 411 87.63 81 Knot Calidris canutus 349 74.41 82 Ruff Calidris pugnax 369 78.68 83 Curlew Sandpiper Calidris ferruginea 260 55.44 84 Long-toed Stint Calidris subminuta 128 27.29 85 Red-necked Stint Calidris ruficollis 58 12.37 86 Sanderling Calidris alba 369 78.68 87 Dunlin Calidris alpina 418 89.13 88 Purple Sandpiper Calidris maritima 265 56.50 89 Little Stint Calidris minuta 290 61.83 90 Pectoral Sandpiper Calidris melanotos 177 37.74 91 Western Sandpiper Calidris mauri 59 12.58 92 Little Tern Sternula albifrons 286 60.98 93 Caspian Tern Hydroprogne caspia 54 11.51 94 Black Tern Chlidonias niger 167 35.61 95 Arctic Tern Sterna paradisaea 290 61.83 96 Common Tern Sterna hirundo 407 86.78 97 Roseate Tern Sterna dougallii 143 30.49 98 Sandwich Tern Thalasseus sandvicensis 372 79.32 99 Elegant Tern Thalasseus elegans 84 17.91 100 Little Gull Hydrocoloeus minutus 281 59.91 101 Kittiwake Rissa tridactyla 382 81.45 102 Bonaparte's Gull Chroicocephalus philadelphia 107 22.81 103 Black-headed Gull Chroicocephalus ridibundus 460 98.08 104 Franklin's Gull Leucophaeus pipixcan 33 7.04 105 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 106 Common Gull Larus canus 418 89.13 107 Caspian Gull Larus cachinnans 184 39.23 108 Herring Gull Larus argentatus 457 97.44 109 Yellow-legged Gull Larus michahellis 226 48.19 110 Great Black-backed Gull Larus marinus 433 92.32 111 Glaucous Gull Larus hyperboreus 88 18.76 112 Lesser Black-backed Gull Larus fuscus 448 95.52 113 Iceland Gull Larus glaucoides 158 33.69 114 Arctic Skua Stercorarius parasiticus 204 43.50 115 Pomarine Skua Stercorarius pomarinus 81 17.27 116 Great Skua Stercorarius skua 216 46.06 117 Puffin Fratercula arctica 305 65.03 118 Black Guillemot Cepphus grylle 206 43.92 119 Razorbill Alca torda 377 80.38 120 Little Auk Alle alle 98 20.90 121 Brunnich's Guillemot Uria lomvia 16 3.41 122 Common Guillemot Uria aalge 387 82.52 123 Red-throated Diver Gavia stellata 330 70.36 124 Black-throated Diver Gavia arctica 178 37.95 125 Pacific Diver Gavia pacifica 30 6.40 126 Great Northern Diver Gavia immer 287 61.19 127 Black-browed Albatross Thalassarche melanophris 200 42.64 128 Storm Petrel Hydrobates pelagicus 79 16.84 129 Fulmar Fulmarus glacialis 389 82.94 130 Sooty Shearwater Ardenna grisea 126 26.87 131 Manx Shearwater Puffinus puffinus 246 52.45 132 Balearic Shearwater Puffinus mauretanicus 94 20.04 133 Gannet Morus bassanus 405 86.35 134 Cormorant Phalacrocorax carbo 457 97.44 135 Shag Gulosus aristotelis 370 78.89 136 Glossy Ibis Plegadis falcinellus 213 45.42 137 Spoonbill Platalea leucorodia 335 71.43 138 Bittern Botaurus stellaris 294 62.69 139 Little Egret Egretta garzetta 444 94.67 140 Cattle Egret Bubulcus ibis 300 63.97 141 Great White Egret Ardea alba 387 82.52 142 Grey Heron Ardea cinerea 454 96.80 143 Purple Heron Ardea purpurea 53 11.30 144 Osprey Pandion haliaetus 294 62.69 145 Honey-buzzard Pernis apivorus 83 17.70 146 Sparrowhawk Accipiter nisus 443 94.46 147 Goshawk Accipiter gentilis 195 41.58 148 Marsh Harrier Circus aeruginosus 406 86.57 149 Hen Harrier Circus cyaneus 227 48.40 150 Red Kite Milvus milvus 434 92.54 151 Buzzard Buteo buteo 457 97.44 152 Barn Owl Tyto alba 371 79.10 153 Little Owl Athene noctua 281 59.91 154 Short-eared Owl Asio flammeus 262 55.86 155 Tawny Owl Strix aluco 364 77.61 156 Kingfisher Alcedo atthis 410 87.42 157 Belted Kingfisher Megaceryle alcyon 93 19.83 158 Bee-eater Merops apiaster 54 11.51 159 Great Spotted Woodpecker Dendrocopos major 443 94.46 160 Green Woodpecker Picus viridis 395 84.22 161 Kestrel Falco tinnunculus 453 96.59 162 Merlin Falco columbarius 275 58.64 163 Hobby Falco subbuteo 347 73.99 164 Peregrine Falco peregrinus 421 89.77 165 Golden Oriole Oriolus oriolus 57 12.15 166 Great Grey Shrike Lanius excubitor 67 14.29 167 Lesser Grey Shrike Lanius minor 28 5.97 168 Woodchat Shrike Lanius senator 99 21.11 169 Red-backed Shrike Lanius collurio 122 26.01 170 Jay Garrulus glandarius 447 95.31 171 Magpie Pica pica 460 98.08 172 Chough Pyrrhocorax pyrrhocorax 194 41.36 173 Jackdaw Coloeus monedula 459 97.87 174 Rook Corvus frugilegus 453 96.59 175 Carrion Crow Corvus corone 460 98.08 176 Raven Corvus corax 415 88.49 177 Coal Tit Periparus ater 446 95.10 178 Marsh Tit Poecile palustris 318 67.80 179 Willow Tit Poecile montanus 179 38.17 180 Blue Tit Cyanistes caeruleus 463 98.72 181 Great Tit Parus major 461 98.29 182 Bearded Tit Panurus biarmicus 299 63.75 183 Woodlark Lullula arborea 210 44.78 184 Skylark Alauda arvensis 440 93.82 185 Shore Lark Eremophila alpestris 122 26.01 186 Sand Martin Riparia riparia 426 90.83 187 Swallow Hirundo rustica 437 93.18 188 House Martin Delichon urbicum 432 92.11 189 Cetti's Warbler Cettia cetti 387 82.52 190 Long-tailed Tit Aegithalos caudatus 453 96.59 191 Wood Warbler Phylloscopus sibilatrix 179 38.17 192 Yellow-browed Warbler Phylloscopus inornatus 128 27.29 193 Willow Warbler Phylloscopus trochilus 415 88.49 194 Chiffchaff Phylloscopus collybita 441 94.03 195 Green Warbler Phylloscopus nitidus 91 19.40 196 Two-barred Greenish Warbler Phylloscopus plumbeitarsus 69 14.71 197 Arctic Warbler Phylloscopus borealis 29 6.18 198 Great Reed Warbler Acrocephalus arundinaceus 92 19.62 199 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 200 Reed Warbler Acrocephalus scirpaceus 399 85.07 201 Marsh Warbler Acrocephalus palustris 52 11.09 202 Icterine Warbler Hippolais icterina 22 4.69 203 River Warbler Locustella fluviatilis 128 27.29 204 Savi's Warbler Locustella luscinioides 60 12.79 205 Grasshopper Warbler Locustella naevia 264 56.29 206 Blackcap Sylvia atricapilla 437 93.18 207 Garden Warbler Sylvia borin 343 73.13 208 Lesser Whitethroat Curruca curruca 332 70.79 209 Eastern Subalpine Warbler Curruca cantillans 49 10.45 210 Whitethroat Curruca communis 421 89.77 211 Firecrest Regulus ignicapilla 198 42.22 212 Goldcrest Regulus regulus 427 91.04 213 Wren Troglodytes troglodytes 458 97.65 214 Nuthatch Sitta europaea 431 91.90 215 Treecreeper Certhia familiaris 420 89.55 216 Northern Mockingbird Mimus polyglottos 132 28.14 217 Starling Sturnus vulgaris 458 97.65 218 Song Thrush Turdus philomelos 454 96.80 219 Mistle Thrush Turdus viscivorus 437 93.18 220 Redwing Turdus iliacus 443 94.46 221 Blackbird Turdus merula 462 98.51 222 Fieldfare Turdus pilaris 422 89.98 223 Ring Ouzel Turdus torquatus 261 55.65 224 Spotted Flycatcher Muscicapa striata 330 70.36 225 Robin Erithacus rubecula 462 98.51 226 Bluethroat Luscinia svecica 83 17.70 227 Taiga Flycatcher Ficedula albicilla 47 10.02 228 Pied Flycatcher Ficedula hypoleuca 286 60.98 229 Red-flanked Bluetail Tarsiger cyanurus 52 11.09 230 Black Redstart Phoenicurus ochruros 230 49.04 231 Redstart Phoenicurus phoenicurus 335 71.43 232 Whinchat Saxicola rubetra 302 64.39 233 Stonechat Saxicola rubicola 432 92.11 234 Wheatear Oenanthe oenanthe 409 87.21 235 Pied Wheatear Oenanthe pleschanka 21 4.48 236 Dipper Cinclus cinclus 289 61.62 237 Tree Sparrow Passer montanus 328 69.94 238 House Sparrow Passer domesticus 458 97.65 239 Dunnock Prunella modularis 462 98.51 240 Yellow Wagtail Motacilla flava 368 78.46 241 Grey Wagtail Motacilla cinerea 440 93.82 242 Pied Wagtail Motacilla alba 460 98.08 243 Meadow Pipit Anthus pratensis 434 92.54 244 Tree Pipit Anthus trivialis 307 65.46 245 Water Pipit Anthus spinoletta 155 33.05 246 Rock Pipit Anthus petrosus 372 79.32 247 Chaffinch Fringilla coelebs 457 97.44 248 Brambling Fringilla montifringilla 310 66.10 249 Bullfinch Pyrrhula pyrrhula 429 91.47 250 Common Rosefinch Carpodacus erythrinus 69 14.71 251 Greenfinch Chloris chloris 453 96.59 252 Twite Linaria flavirostris 178 37.95 253 Linnet Linaria cannabina 437 93.18 254 Lesser Redpoll Acanthis cabaret 341 72.71 255 Common Crossbill Loxia curvirostra 263 56.08 256 Goldfinch Carduelis carduelis 454 96.80 257 Siskin Spinus spinus 414 88.27 258 Lapland Bunting Calcarius lapponicus 78 16.63 259 Snow Bunting Plectrophenax nivalis 254 54.16 260 Corn Bunting Emberiza calandra 289 61.62 261 Yellowhammer Emberiza citrinella 407 86.78 262 Cirl Bunting Emberiza cirlus 103 21.96 263 Little Bunting Emberiza pusilla 110 23.45 264 Reed Bunting Emberiza schoeniclus 439 93.60