James Bloor: Britain Year List 2023 BOU, All records: Top Blockers Record(s) 1 to 250 of 250 total. Seq. Species Scientific Name Seen By Other Listers Other Listers (%) 1 Brent Goose Branta bernicla 388 78.23 2 Canada Goose Branta canadensis 487 98.19 3 Barnacle Goose Branta leucopsis 374 75.40 4 Cackling Goose Branta hutchinsii 70 14.11 5 Ross's Goose Anser rossii 14 2.82 6 Snow Goose Anser caerulescens 46 9.27 7 Greylag Goose Anser anser 481 96.98 8 Pink-footed Goose Anser brachyrhynchus 399 80.44 9 White-fronted Goose Anser albifrons 299 60.28 10 Mute Swan Cygnus olor 490 98.79 11 Bewick's Swan Cygnus columbianus 258 52.02 12 Whooper Swan Cygnus cygnus 386 77.82 13 Egyptian Goose Alopochen aegyptiaca 391 78.83 14 Shelduck Tadorna tadorna 477 96.17 15 Mandarin Duck Aix galericulata 346 69.76 16 Garganey Spatula querquedula 320 64.52 17 Blue-winged Teal Spatula discors 82 16.53 18 Shoveler Spatula clypeata 468 94.35 19 Gadwall Mareca strepera 464 93.55 20 Wigeon Mareca penelope 472 95.16 21 American Wigeon Mareca americana 148 29.84 22 Mallard Anas platyrhynchos 489 98.59 23 Pintail Anas acuta 435 87.70 24 Teal Anas crecca 478 96.37 25 Red-crested Pochard Netta rufina 204 41.13 26 Canvasback Aythya valisineria 80 16.13 27 Pochard Aythya ferina 455 91.73 28 Ring-necked Duck Aythya collaris 233 46.98 29 Tufted Duck Aythya fuligula 478 96.37 30 Scaup Aythya marila 318 64.11 31 Eider Somateria mollissima 354 71.37 32 Common Scoter Melanitta nigra 378 76.21 33 Long-tailed Duck Clangula hyemalis 283 57.06 34 Goldeneye Bucephala clangula 432 87.10 35 Smew Mergellus albellus 245 49.40 36 Hooded Merganser Lophodytes cucullatus 58 11.69 37 Goosander Mergus merganser 434 87.50 38 Red-breasted Merganser Mergus serrator 364 73.39 39 Red Grouse Lagopus lagopus 258 52.02 40 Grey Partridge Perdix perdix 314 63.31 41 Lady Amherst's Pheasant Chrysolophus amherstiae 10 2.02 42 Pheasant Phasianus colchicus 483 97.38 43 Quail Coturnix coturnix 103 20.77 44 Red-legged Partridge Alectoris rufa 405 81.65 45 Alpine Swift Tachymarptis melba 179 36.09 46 Swift Apus apus 443 89.31 47 Pallid Swift Apus pallidus 59 11.90 48 Cuckoo Cuculus canorus 389 78.43 49 Rock Dove (Feral Pigeon) Columba livia 417 84.07 50 Stock Dove Columba oenas 449 90.52 51 Woodpigeon Columba palumbus 490 98.79 52 Collared Dove Streptopelia decaocto 484 97.58 53 Water Rail Rallus aquaticus 383 77.22 54 Moorhen Gallinula chloropus 488 98.39 55 Coot Fulica atra 483 97.38 56 Little Crake Zapornia parva 40 8.06 57 Crane Grus grus 257 51.81 58 Little Grebe Tachybaptus ruficollis 466 93.95 59 Red-necked Grebe Podiceps grisegena 153 30.85 60 Great Crested Grebe Podiceps cristatus 467 94.15 61 Oystercatcher Haematopus ostralegus 471 94.96 62 Black-winged Stilt Himantopus himantopus 225 45.36 63 Avocet Recurvirostra avosetta 432 87.10 64 Golden Plover Pluvialis apricaria 421 84.88 65 Ringed Plover Charadrius hiaticula 443 89.31 66 Little Ringed Plover Charadrius dubius 373 75.20 67 Lapwing Vanellus vanellus 479 96.57 68 Kentish Plover Anarhynchus alexandrinus 73 14.72 69 Eurasian Whimbrel Numenius phaeopus 335 67.54 70 Curlew Numenius arquata 465 93.75 71 Bar-tailed Godwit Limosa lapponica 376 75.81 72 Black-tailed Godwit Limosa limosa 444 89.52 73 Long-billed Dowitcher Limnodromus scolopaceus 151 30.44 74 Jack Snipe Lymnocryptes minimus 204 41.13 75 Snipe Gallinago gallinago 446 89.92 76 Wilson's Snipe Gallinago delicata 13 2.62 77 Grey Phalarope Phalaropus fulicarius 148 29.84 78 Red-necked Phalarope Phalaropus lobatus 84 16.94 79 Common Sandpiper Actitis hypoleucos 408 82.26 80 Green Sandpiper Tringa ochropus 349 70.36 81 Wood Sandpiper Tringa glareola 259 52.22 82 Redshank Tringa totanus 470 94.76 83 Lesser Yellowlegs Tringa flavipes 128 25.81 84 Spotted Redshank Tringa erythropus 300 60.48 85 Greenshank Tringa nebularia 375 75.60 86 Turnstone Arenaria interpres 433 87.30 87 Knot Calidris canutus 347 69.96 88 Ruff Calidris pugnax 390 78.63 89 Sharp-tailed Sandpiper Calidris acuminata 26 5.24 90 Curlew Sandpiper Calidris ferruginea 267 53.83 91 Buff-breasted Sandpiper Calidris subruficollis 128 25.81 92 Sanderling Calidris alba 387 78.02 93 Dunlin Calidris alpina 452 91.13 94 Purple Sandpiper Calidris maritima 289 58.27 95 Little Stint Calidris minuta 262 52.82 96 White-rumped Sandpiper Calidris fuscicollis 113 22.78 97 Bridled Tern Onychoprion anaethetus 17 3.43 98 Black Tern Chlidonias niger 194 39.11 99 Forster's Tern Sterna forsteri 85 17.14 100 Arctic Tern Sterna paradisaea 271 54.64 101 Common Tern Sterna hirundo 406 81.85 102 Sandwich Tern Thalasseus sandvicensis 361 72.78 103 Kittiwake Rissa tridactyla 379 76.41 104 Sabine's Gull Xema sabini 92 18.55 105 Black-headed Gull Chroicocephalus ridibundus 485 97.78 106 Mediterranean Gull Ichthyaetus melanocephalus 385 77.62 107 Common Gull Larus canus 461 92.94 108 Caspian Gull Larus cachinnans 200 40.32 109 Herring Gull Larus argentatus 483 97.38 110 Yellow-legged Gull Larus michahellis 222 44.76 111 Great Black-backed Gull Larus marinus 454 91.53 112 Lesser Black-backed Gull Larus fuscus 462 93.15 113 Arctic Skua Stercorarius parasiticus 261 52.62 114 Great Skua Stercorarius skua 185 37.30 115 Puffin Fratercula arctica 260 52.42 116 Black Guillemot Cepphus grylle 195 39.31 117 Razorbill Alca torda 372 75.00 118 Common Guillemot Uria aalge 391 78.83 119 Red-throated Diver Gavia stellata 356 71.77 120 Black-throated Diver Gavia arctica 215 43.35 121 Great Northern Diver Gavia immer 328 66.13 122 White-billed Diver Gavia adamsii 32 6.45 123 Fulmar Fulmarus glacialis 368 74.19 124 Cory's Shearwater Calonectris borealis 137 27.62 125 Sooty Shearwater Ardenna grisea 149 30.04 126 Great Shearwater Ardenna gravis 118 23.79 127 Manx Shearwater Puffinus puffinus 274 55.24 128 Black Stork Ciconia nigra 32 6.45 129 Gannet Morus bassanus 404 81.45 130 Red-footed Booby Sula sula 74 14.92 131 Cormorant Phalacrocorax carbo 485 97.78 132 Shag Gulosus aristotelis 393 79.23 133 Glossy Ibis Plegadis falcinellus 202 40.73 134 Spoonbill Platalea leucorodia 348 70.16 135 Bittern Botaurus stellaris 293 59.07 136 Little Egret Egretta garzetta 473 95.36 137 Cattle Egret Bubulcus ibis 336 67.74 138 Great White Egret Ardea alba 428 86.29 139 Grey Heron Ardea cinerea 484 97.58 140 Osprey Pandion haliaetus 304 61.29 141 Sparrowhawk Accipiter nisus 469 94.56 142 Goshawk Accipiter gentilis 241 48.59 143 Marsh Harrier Circus aeruginosus 440 88.71 144 Hen Harrier Circus cyaneus 319 64.31 145 Pallid Harrier Circus macrourus 113 22.78 146 Red Kite Milvus milvus 467 94.15 147 White-tailed Eagle Haliaeetus albicilla 164 33.06 148 Buzzard Buteo buteo 487 98.19 149 Barn Owl Tyto alba 413 83.27 150 Short-eared Owl Asio flammeus 310 62.50 151 Kingfisher Alcedo atthis 433 87.30 152 Bee-eater Merops apiaster 77 15.52 153 Lesser Spotted Woodpecker Dryobates minor 102 20.56 154 Great Spotted Woodpecker Dendrocopos major 467 94.15 155 Green Woodpecker Picus viridis 406 81.85 156 Kestrel Falco tinnunculus 486 97.98 157 Merlin Falco columbarius 280 56.45 158 Hobby Falco subbuteo 352 70.97 159 Peregrine Falco peregrinus 427 86.09 160 Ring-necked Parakeet Psittacula krameri 326 65.73 161 Jay Garrulus glandarius 470 94.76 162 Magpie Pica pica 490 98.79 163 Chough Pyrrhocorax pyrrhocorax 210 42.34 164 Jackdaw Coloeus monedula 488 98.39 165 Rook Corvus frugilegus 476 95.97 166 Carrion Crow Corvus corone 489 98.59 167 Hooded Crow Corvus cornix 210 42.34 168 Raven Corvus corax 430 86.69 169 Waxwing Bombycilla garrulus 299 60.28 170 Coal Tit Periparus ater 468 94.35 171 Marsh Tit Poecile palustris 335 67.54 172 Willow Tit Poecile montanus 177 35.69 173 Blue Tit Cyanistes caeruleus 488 98.39 174 Great Tit Parus major 487 98.19 175 Skylark Alauda arvensis 469 94.56 176 Sand Martin Riparia riparia 443 89.31 177 Swallow Hirundo rustica 453 91.33 178 House Martin Delichon urbicum 444 89.52 179 Red-rumped Swallow Cecropis daurica 21 4.23 180 Cetti's Warbler Cettia cetti 419 84.48 181 Long-tailed Tit Aegithalos caudatus 483 97.38 182 Yellow-browed Warbler Phylloscopus inornatus 166 33.47 183 Pallas's Warbler Phylloscopus proregulus 130 26.21 184 Willow Warbler Phylloscopus trochilus 425 85.69 185 Chiffchaff Phylloscopus collybita 465 93.75 186 Greenish Warbler Phylloscopus trochiloides 32 6.45 187 Arctic Warbler Phylloscopus borealis 30 6.05 188 Sedge Warbler Acrocephalus schoenobaenus 411 82.86 189 Blyth's Reed Warbler Acrocephalus dumetorum 23 4.64 190 Reed Warbler Acrocephalus scirpaceus 388 78.23 191 Marsh Warbler Acrocephalus palustris 93 18.75 192 Blackcap Sylvia atricapilla 457 92.14 193 Garden Warbler Sylvia borin 365 73.59 194 Barred Warbler Curruca nisoria 78 15.73 195 Lesser Whitethroat Curruca curruca 324 65.32 196 Eastern Subalpine Warbler Curruca cantillans 39 7.86 197 Whitethroat Curruca communis 428 86.29 198 Firecrest Regulus ignicapilla 252 50.81 199 Goldcrest Regulus regulus 458 92.34 200 Wren Troglodytes troglodytes 486 97.98 201 Nuthatch Sitta europaea 447 90.12 202 Treecreeper Certhia familiaris 438 88.31 203 Rose-coloured Starling Pastor roseus 70 14.11 204 Starling Sturnus vulgaris 487 98.19 205 Veery Catharus fuscescens 29 5.85 206 White's Thrush Zoothera aurea 31 6.25 207 Song Thrush Turdus philomelos 472 95.16 208 Mistle Thrush Turdus viscivorus 452 91.13 209 Redwing Turdus iliacus 466 93.95 210 Blackbird Turdus merula 490 98.79 211 Fieldfare Turdus pilaris 452 91.13 212 Ring Ouzel Turdus torquatus 240 48.39 213 Robin Erithacus rubecula 485 97.78 214 Nightingale Luscinia megarhynchos 163 32.86 215 Bluethroat Luscinia svecica 78 15.73 216 Red-breasted Flycatcher Ficedula parva 68 13.71 217 Pied Flycatcher Ficedula hypoleuca 263 53.02 218 Black Redstart Phoenicurus ochruros 245 49.40 219 Redstart Phoenicurus phoenicurus 313 63.10 220 Whinchat Saxicola rubetra 305 61.49 221 Stonechat Saxicola rubicola 459 92.54 222 Wheatear Oenanthe oenanthe 413 83.27 223 Dipper Cinclus cinclus 330 66.53 224 Tree Sparrow Passer montanus 329 66.33 225 House Sparrow Passer domesticus 488 98.39 226 Dunnock Prunella modularis 481 96.98 227 Yellow Wagtail Motacilla flava 338 68.15 228 Citrine Wagtail Motacilla citreola 26 5.24 229 Grey Wagtail Motacilla cinerea 451 90.93 230 Pied Wagtail Motacilla alba 478 96.37 231 Richard's Pipit Anthus richardi 55 11.09 232 Meadow Pipit Anthus pratensis 467 94.15 233 Tree Pipit Anthus trivialis 286 57.66 234 Rock Pipit Anthus petrosus 381 76.81 235 Chaffinch Fringilla coelebs 484 97.58 236 Brambling Fringilla montifringilla 316 63.71 237 Hawfinch Coccothraustes coccothraustes 234 47.18 238 Bullfinch Pyrrhula pyrrhula 435 87.70 239 Common Rosefinch Carpodacus erythrinus 86 17.34 240 Greenfinch Chloris chloris 471 94.96 241 Twite Linaria flavirostris 210 42.34 242 Linnet Linaria cannabina 458 92.34 243 Lesser Redpoll Acanthis cabaret 345 69.56 244 Goldfinch Carduelis carduelis 486 97.98 245 Siskin Spinus spinus 425 85.69 246 Snow Bunting Plectrophenax nivalis 244 49.19 247 Yellowhammer Emberiza citrinella 421 84.88 248 Little Bunting Emberiza pusilla 83 16.73 249 Reed Bunting Emberiza schoeniclus 463 93.35 250 Magnolia Warbler Setophaga magnolia 105 21.17