Sam Porter: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 254 of 254 total. Seq. Species Scientific Name Seen By Other Listers Other Listers (%) 1 Brent Goose Branta bernicla 359 76.55 2 Red-breasted Goose Branta ruficollis 18 3.84 3 Canada Goose Branta canadensis 460 98.08 4 Barnacle Goose Branta leucopsis 322 68.66 5 Greylag Goose Anser anser 449 95.74 6 Pink-footed Goose Anser brachyrhynchus 357 76.12 7 White-fronted Goose Anser albifrons 238 50.75 8 Mute Swan Cygnus olor 461 98.29 9 Bewick's Swan Cygnus columbianus 135 28.78 10 Whooper Swan Cygnus cygnus 310 66.10 11 Egyptian Goose Alopochen aegyptiaca 370 78.89 12 Shelduck Tadorna tadorna 441 94.03 13 Mandarin Duck Aix galericulata 310 66.10 14 Garganey Spatula querquedula 282 60.13 15 Shoveler Spatula clypeata 444 94.67 16 Gadwall Mareca strepera 442 94.24 17 Wigeon Mareca penelope 442 94.24 18 American Wigeon Mareca americana 68 14.50 19 Mallard Anas platyrhynchos 461 98.29 20 Pintail Anas acuta 390 83.16 21 Teal Anas crecca 445 94.88 22 Red-crested Pochard Netta rufina 170 36.25 23 Pochard Aythya ferina 426 90.83 24 Ferruginous Duck Aythya nyroca 44 9.38 25 Ring-necked Duck Aythya collaris 190 40.51 26 Tufted Duck Aythya fuligula 457 97.44 27 Scaup Aythya marila 244 52.03 28 Eider Somateria mollissima 333 71.00 29 Velvet Scoter Melanitta fusca 171 36.46 30 Common Scoter Melanitta nigra 347 73.99 31 Goldeneye Bucephala clangula 383 81.66 32 Smew Mergellus albellus 159 33.90 33 Goosander Mergus merganser 390 83.16 34 Red-breasted Merganser Mergus serrator 324 69.08 35 Grey Partridge Perdix perdix 294 62.69 36 Pheasant Phasianus colchicus 454 96.80 37 Quail Coturnix coturnix 87 18.55 38 Red-legged Partridge Alectoris rufa 400 85.29 39 Nightjar Caprimulgus europaeus 205 43.71 40 Swift Apus apus 430 91.68 41 Cuckoo Cuculus canorus 382 81.45 42 Rock Dove (Feral Pigeon) Columba livia 403 85.93 43 Stock Dove Columba oenas 416 88.70 44 Woodpigeon Columba palumbus 463 98.72 45 Turtle Dove Streptopelia turtur 172 36.67 46 Collared Dove Streptopelia decaocto 453 96.59 47 Water Rail Rallus aquaticus 353 75.27 48 Moorhen Gallinula chloropus 458 97.65 49 Coot Fulica atra 456 97.23 50 Crane Grus grus 199 42.43 51 Little Grebe Tachybaptus ruficollis 443 94.46 52 Red-necked Grebe Podiceps grisegena 141 30.06 53 Great Crested Grebe Podiceps cristatus 447 95.31 54 Black-necked Grebe Podiceps nigricollis 255 54.37 55 Stone-curlew Burhinus oedicnemus 168 35.82 56 Oystercatcher Haematopus ostralegus 448 95.52 57 Black-winged Stilt Himantopus himantopus 82 17.48 58 Avocet Recurvirostra avosetta 394 84.01 59 Grey Plover Pluvialis squatarola 343 73.13 60 Golden Plover Pluvialis apricaria 389 82.94 61 Pacific Golden Plover Pluvialis fulva 133 28.36 62 Ringed Plover Charadrius hiaticula 399 85.07 63 Little Ringed Plover Charadrius dubius 360 76.76 64 Lapwing Vanellus vanellus 453 96.59 65 White-tailed Plover Vanellus leucurus 200 42.64 66 Eurasian Whimbrel Numenius phaeopus 349 74.41 67 Curlew Numenius arquata 436 92.96 68 Bar-tailed Godwit Limosa lapponica 368 78.46 69 Black-tailed Godwit Limosa limosa 411 87.63 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 Red-necked Phalarope Phalaropus lobatus 65 13.86 75 Common Sandpiper Actitis hypoleucos 397 84.65 76 Green Sandpiper Tringa ochropus 351 74.84 77 Wood Sandpiper Tringa glareola 270 57.57 78 Redshank Tringa totanus 434 92.54 79 Spotted Redshank Tringa erythropus 331 70.58 80 Greenshank Tringa nebularia 382 81.45 81 Turnstone Arenaria interpres 411 87.63 82 Knot Calidris canutus 349 74.41 83 Ruff Calidris pugnax 369 78.68 84 Curlew Sandpiper Calidris ferruginea 260 55.44 85 Long-toed Stint Calidris subminuta 128 27.29 86 Red-necked Stint Calidris ruficollis 58 12.37 87 Sanderling Calidris alba 369 78.68 88 Dunlin Calidris alpina 418 89.13 89 Purple Sandpiper Calidris maritima 265 56.50 90 Little Stint Calidris minuta 290 61.83 91 White-rumped Sandpiper Calidris fuscicollis 37 7.89 92 Pectoral Sandpiper Calidris melanotos 177 37.74 93 Western Sandpiper Calidris mauri 59 12.58 94 Collared Pratincole Glareola pratincola 60 12.79 95 Little Tern Sternula albifrons 286 60.98 96 Whiskered Tern Chlidonias hybrida 35 7.46 97 Arctic Tern Sterna paradisaea 290 61.83 98 Common Tern Sterna hirundo 407 86.78 99 Roseate Tern Sterna dougallii 143 30.49 100 Sandwich Tern Thalasseus sandvicensis 372 79.32 101 Elegant Tern Thalasseus elegans 84 17.91 102 Little Gull Hydrocoloeus minutus 281 59.91 103 Kittiwake Rissa tridactyla 382 81.45 104 Bonaparte's Gull Chroicocephalus philadelphia 107 22.81 105 Black-headed Gull Chroicocephalus ridibundus 460 98.08 106 Mediterranean Gull Ichthyaetus melanocephalus 366 78.04 107 Common Gull Larus canus 418 89.13 108 Caspian Gull Larus cachinnans 184 39.23 109 Herring Gull Larus argentatus 457 97.44 110 Yellow-legged Gull Larus michahellis 226 48.19 111 Great Black-backed Gull Larus marinus 433 92.32 112 Lesser Black-backed Gull Larus fuscus 448 95.52 113 Puffin Fratercula arctica 305 65.03 114 Black Guillemot Cepphus grylle 206 43.92 115 Razorbill Alca torda 377 80.38 116 Little Auk Alle alle 98 20.90 117 Common Guillemot Uria aalge 387 82.52 118 Red-throated Diver Gavia stellata 330 70.36 119 Black-throated Diver Gavia arctica 178 37.95 120 Great Northern Diver Gavia immer 287 61.19 121 Wilson's Petrel Oceanites oceanicus 16 3.41 122 Black-browed Albatross Thalassarche melanophris 200 42.64 123 Storm Petrel Hydrobates pelagicus 79 16.84 124 Fulmar Fulmarus glacialis 389 82.94 125 Sooty Shearwater Ardenna grisea 126 26.87 126 Manx Shearwater Puffinus puffinus 246 52.45 127 Balearic Shearwater Puffinus mauretanicus 94 20.04 128 Black Stork Ciconia nigra 82 17.48 129 White Stork Ciconia ciconia 64 13.65 130 Gannet Morus bassanus 405 86.35 131 Cormorant Phalacrocorax carbo 457 97.44 132 Shag Gulosus aristotelis 370 78.89 133 Glossy Ibis Plegadis falcinellus 213 45.42 134 Spoonbill Platalea leucorodia 335 71.43 135 Bittern Botaurus stellaris 294 62.69 136 Little Egret Egretta garzetta 444 94.67 137 Cattle Egret Bubulcus ibis 300 63.97 138 Great White Egret Ardea alba 387 82.52 139 Grey Heron Ardea cinerea 454 96.80 140 Purple Heron Ardea purpurea 53 11.30 141 Osprey Pandion haliaetus 294 62.69 142 Sparrowhawk Accipiter nisus 443 94.46 143 Goshawk Accipiter gentilis 195 41.58 144 Marsh Harrier Circus aeruginosus 406 86.57 145 Hen Harrier Circus cyaneus 227 48.40 146 Red Kite Milvus milvus 434 92.54 147 Buzzard Buteo buteo 457 97.44 148 Barn Owl Tyto alba 371 79.10 149 Little Owl Athene noctua 281 59.91 150 Short-eared Owl Asio flammeus 262 55.86 151 Tawny Owl Strix aluco 364 77.61 152 Roller Coracias garrulus 113 24.09 153 Kingfisher Alcedo atthis 410 87.42 154 Lesser Spotted Woodpecker Dryobates minor 117 24.95 155 Great Spotted Woodpecker Dendrocopos major 443 94.46 156 Green Woodpecker Picus viridis 395 84.22 157 Kestrel Falco tinnunculus 453 96.59 158 Hobby Falco subbuteo 347 73.99 159 Peregrine Falco peregrinus 421 89.77 160 Ring-necked Parakeet Psittacula krameri 290 61.83 161 Great Grey Shrike Lanius excubitor 67 14.29 162 Woodchat Shrike Lanius senator 99 21.11 163 Jay Garrulus glandarius 447 95.31 164 Magpie Pica pica 460 98.08 165 Chough Pyrrhocorax pyrrhocorax 194 41.36 166 Jackdaw Coloeus monedula 459 97.87 167 Rook Corvus frugilegus 453 96.59 168 Carrion Crow Corvus corone 460 98.08 169 Hooded Crow Corvus cornix 193 41.15 170 Raven Corvus corax 415 88.49 171 Coal Tit Periparus ater 446 95.10 172 Marsh Tit Poecile palustris 318 67.80 173 Willow Tit Poecile montanus 179 38.17 174 Blue Tit Cyanistes caeruleus 463 98.72 175 Great Tit Parus major 461 98.29 176 Bearded Tit Panurus biarmicus 299 63.75 177 Woodlark Lullula arborea 210 44.78 178 Skylark Alauda arvensis 440 93.82 179 Shore Lark Eremophila alpestris 122 26.01 180 Short-toed Lark Calandrella brachydactyla 37 7.89 181 Sand Martin Riparia riparia 426 90.83 182 Swallow Hirundo rustica 437 93.18 183 House Martin Delichon urbicum 432 92.11 184 Cetti's Warbler Cettia cetti 387 82.52 185 Long-tailed Tit Aegithalos caudatus 453 96.59 186 Dusky Warbler Phylloscopus fuscatus 60 12.79 187 Willow Warbler Phylloscopus trochilus 415 88.49 188 Chiffchaff Phylloscopus collybita 441 94.03 189 Green Warbler Phylloscopus nitidus 91 19.40 190 Two-barred Greenish Warbler Phylloscopus plumbeitarsus 69 14.71 191 Arctic Warbler Phylloscopus borealis 29 6.18 192 Great Reed Warbler Acrocephalus arundinaceus 92 19.62 193 Sedge Warbler Acrocephalus schoenobaenus 413 88.06 194 Blyth's Reed Warbler Acrocephalus dumetorum 43 9.17 195 Reed Warbler Acrocephalus scirpaceus 399 85.07 196 River Warbler Locustella fluviatilis 128 27.29 197 Grasshopper Warbler Locustella naevia 264 56.29 198 Blackcap Sylvia atricapilla 437 93.18 199 Garden Warbler Sylvia borin 343 73.13 200 Barred Warbler Curruca nisoria 63 13.43 201 Lesser Whitethroat Curruca curruca 332 70.79 202 Whitethroat Curruca communis 421 89.77 203 Dartford Warbler Curruca undata 184 39.23 204 Firecrest Regulus ignicapilla 198 42.22 205 Goldcrest Regulus regulus 427 91.04 206 Wren Troglodytes troglodytes 458 97.65 207 Nuthatch Sitta europaea 431 91.90 208 Treecreeper Certhia familiaris 420 89.55 209 Northern Mockingbird Mimus polyglottos 132 28.14 210 Starling Sturnus vulgaris 458 97.65 211 Song Thrush Turdus philomelos 454 96.80 212 Mistle Thrush Turdus viscivorus 437 93.18 213 Redwing Turdus iliacus 443 94.46 214 Blackbird Turdus merula 462 98.51 215 Fieldfare Turdus pilaris 422 89.98 216 Ring Ouzel Turdus torquatus 261 55.65 217 Spotted Flycatcher Muscicapa striata 330 70.36 218 Robin Erithacus rubecula 462 98.51 219 Nightingale Luscinia megarhynchos 158 33.69 220 Pied Flycatcher Ficedula hypoleuca 286 60.98 221 Black Redstart Phoenicurus ochruros 230 49.04 222 Redstart Phoenicurus phoenicurus 335 71.43 223 Whinchat Saxicola rubetra 302 64.39 224 Stonechat Saxicola rubicola 432 92.11 225 Wheatear Oenanthe oenanthe 409 87.21 226 Desert Wheatear Oenanthe deserti 9 1.92 227 Dipper Cinclus cinclus 289 61.62 228 Tree Sparrow Passer montanus 328 69.94 229 House Sparrow Passer domesticus 458 97.65 230 Dunnock Prunella modularis 462 98.51 231 Yellow Wagtail Motacilla flava 368 78.46 232 Grey Wagtail Motacilla cinerea 440 93.82 233 Pied Wagtail Motacilla alba 460 98.08 234 Tawny Pipit Anthus campestris 14 2.99 235 Meadow Pipit Anthus pratensis 434 92.54 236 Tree Pipit Anthus trivialis 307 65.46 237 Water Pipit Anthus spinoletta 155 33.05 238 Rock Pipit Anthus petrosus 372 79.32 239 Chaffinch Fringilla coelebs 457 97.44 240 Brambling Fringilla montifringilla 310 66.10 241 Hawfinch Coccothraustes coccothraustes 170 36.25 242 Bullfinch Pyrrhula pyrrhula 429 91.47 243 Greenfinch Chloris chloris 453 96.59 244 Linnet Linaria cannabina 437 93.18 245 Lesser Redpoll Acanthis cabaret 341 72.71 246 Goldfinch Carduelis carduelis 454 96.80 247 Siskin Spinus spinus 414 88.27 248 Snow Bunting Plectrophenax nivalis 254 54.16 249 Corn Bunting Emberiza calandra 289 61.62 250 Yellowhammer Emberiza citrinella 407 86.78 251 Cirl Bunting Emberiza cirlus 103 21.96 252 Little Bunting Emberiza pusilla 110 23.45 253 Reed Bunting Emberiza schoeniclus 439 93.60 254 White-throated Sparrow Zonotrichia albicollis 63 13.43