John Douglas: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 220 of 220 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,Ross's Goose,Anser rossii,11,2.35
5,Snow Goose,Anser caerulescens,32,6.82
6,Greylag Goose,Anser anser,449,95.74
7,Taiga Bean Goose,Anser fabalis,36,7.68
8,Pink-footed Goose,Anser brachyrhynchus,357,76.12
9,White-fronted Goose,Anser albifrons,238,50.75
10,Mute Swan,Cygnus olor,461,98.29
11,Bewick's Swan,Cygnus columbianus,135,28.78
12,Whooper Swan,Cygnus cygnus,310,66.10
13,Egyptian Goose,Alopochen aegyptiaca,370,78.89
14,Shelduck,Tadorna tadorna,441,94.03
15,Mandarin Duck,Aix galericulata,310,66.10
16,Shoveler,Spatula clypeata,444,94.67
17,Gadwall,Mareca strepera,442,94.24
18,Wigeon,Mareca penelope,442,94.24
19,American Wigeon,Mareca americana,68,14.50
20,Mallard,Anas platyrhynchos,461,98.29
21,Pintail,Anas acuta,390,83.16
22,Teal,Anas crecca,445,94.88
23,Pochard,Aythya ferina,426,90.83
24,Ring-necked Duck,Aythya collaris,190,40.51
25,Tufted Duck,Aythya fuligula,457,97.44
26,Scaup,Aythya marila,244,52.03
27,Eider,Somateria mollissima,333,71.00
28,Velvet Scoter,Melanitta fusca,171,36.46
29,Common Scoter,Melanitta nigra,347,73.99
30,Long-tailed Duck,Clangula hyemalis,205,43.71
31,Goldeneye,Bucephala clangula,383,81.66
32,Hooded Merganser,Lophodytes cucullatus,13,2.77
33,Goosander,Mergus merganser,390,83.16
34,Red-breasted Merganser,Mergus serrator,324,69.08
35,Red Grouse,Lagopus lagopus,209,44.56
36,Capercaillie,Tetrao urogallus,18,3.84
37,Black Grouse,Lyrurus tetrix,102,21.75
38,Grey Partridge,Perdix perdix,294,62.69
39,Pheasant,Phasianus colchicus,454,96.80
40,Red-legged Partridge,Alectoris rufa,400,85.29
41,Swift,Apus apus,430,91.68
42,Great Bustard,Otis tarda,17,3.62
43,Cuckoo,Cuculus canorus,382,81.45
44,Rock Dove (Feral Pigeon),Columba livia,403,85.93
45,Stock Dove,Columba oenas,416,88.70
46,Woodpigeon,Columba palumbus,463,98.72
47,Collared Dove,Streptopelia decaocto,453,96.59
48,Water Rail,Rallus aquaticus,353,75.27
49,Moorhen,Gallinula chloropus,458,97.65
50,Coot,Fulica atra,456,97.23
51,Crane,Grus grus,199,42.43
52,Little Grebe,Tachybaptus ruficollis,443,94.46
53,Red-necked Grebe,Podiceps grisegena,141,30.06
54,Great Crested Grebe,Podiceps cristatus,447,95.31
55,Slavonian Grebe,Podiceps auritus,235,50.11
56,Black-necked Grebe,Podiceps nigricollis,255,54.37
57,Oystercatcher,Haematopus ostralegus,448,95.52
58,Avocet,Recurvirostra avosetta,394,84.01
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,Jack Snipe,Lymnocryptes minimus,232,49.47
70,Snipe,Gallinago gallinago,413,88.06
71,Wilson's Phalarope,Phalaropus tricolor,42,8.96
72,Common Sandpiper,Actitis hypoleucos,397,84.65
73,Green Sandpiper,Tringa ochropus,351,74.84
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,Baird's Sandpiper,Calidris bairdii,20,4.26
86,Little Stint,Calidris minuta,290,61.83
87,Arctic Tern,Sterna paradisaea,290,61.83
88,Common Tern,Sterna hirundo,407,86.78
89,Sandwich Tern,Thalasseus sandvicensis,372,79.32
90,Kittiwake,Rissa tridactyla,382,81.45
91,Black-headed Gull,Chroicocephalus ridibundus,460,98.08
92,Mediterranean Gull,Ichthyaetus melanocephalus,366,78.04
93,Common Gull,Larus canus,418,89.13
94,Caspian Gull,Larus cachinnans,184,39.23
95,Herring Gull,Larus argentatus,457,97.44
96,Yellow-legged Gull,Larus michahellis,226,48.19
97,Great Black-backed Gull,Larus marinus,433,92.32
98,Lesser Black-backed Gull,Larus fuscus,448,95.52
99,Puffin,Fratercula arctica,305,65.03
100,Razorbill,Alca torda,377,80.38
101,Common Guillemot,Uria aalge,387,82.52
102,Red-throated Diver,Gavia stellata,330,70.36
103,Black-throated Diver,Gavia arctica,178,37.95
104,Great Northern Diver,Gavia immer,287,61.19
105,Black-browed Albatross,Thalassarche melanophris,200,42.64
106,Fulmar,Fulmarus glacialis,389,82.94
107,Gannet,Morus bassanus,405,86.35
108,Cormorant,Phalacrocorax carbo,457,97.44
109,Shag,Gulosus aristotelis,370,78.89
110,Spoonbill,Platalea leucorodia,335,71.43
111,Bittern,Botaurus stellaris,294,62.69
112,Little Egret,Egretta garzetta,444,94.67
113,Cattle Egret,Bubulcus ibis,300,63.97
114,Great White Egret,Ardea alba,387,82.52
115,Grey Heron,Ardea cinerea,454,96.80
116,Honey-buzzard,Pernis apivorus,83,17.70
117,Golden Eagle,Aquila chrysaetos,81,17.27
118,Sparrowhawk,Accipiter nisus,443,94.46
119,Goshawk,Accipiter gentilis,195,41.58
120,Marsh Harrier,Circus aeruginosus,406,86.57
121,Hen Harrier,Circus cyaneus,227,48.40
122,Red Kite,Milvus milvus,434,92.54
123,Buzzard,Buteo buteo,457,97.44
124,Barn Owl,Tyto alba,371,79.10
125,Little Owl,Athene noctua,281,59.91
126,Short-eared Owl,Asio flammeus,262,55.86
127,Tawny Owl,Strix aluco,364,77.61
128,Kingfisher,Alcedo atthis,410,87.42
129,Belted Kingfisher,Megaceryle alcyon,93,19.83
130,Bee-eater,Merops apiaster,54,11.51
131,Lesser Spotted Woodpecker,Dryobates minor,117,24.95
132,Great Spotted Woodpecker,Dendrocopos major,443,94.46
133,Green Woodpecker,Picus viridis,395,84.22
134,Kestrel,Falco tinnunculus,453,96.59
135,Merlin,Falco columbarius,275,58.64
136,Hobby,Falco subbuteo,347,73.99
137,Peregrine,Falco peregrinus,421,89.77
138,Ring-necked Parakeet,Psittacula krameri,290,61.83
139,Lesser Grey Shrike,Lanius minor,28,5.97
140,Red-backed Shrike,Lanius collurio,122,26.01
141,Jay,Garrulus glandarius,447,95.31
142,Magpie,Pica pica,460,98.08
143,Chough,Pyrrhocorax pyrrhocorax,194,41.36
144,Jackdaw,Coloeus monedula,459,97.87
145,Rook,Corvus frugilegus,453,96.59
146,Carrion Crow,Corvus corone,460,98.08
147,Hooded Crow,Corvus cornix,193,41.15
148,Raven,Corvus corax,415,88.49
149,Coal Tit,Periparus ater,446,95.10
150,Crested Tit,Lophophanes cristatus,63,13.43
151,Marsh Tit,Poecile palustris,318,67.80
152,Willow Tit,Poecile montanus,179,38.17
153,Blue Tit,Cyanistes caeruleus,463,98.72
154,Great Tit,Parus major,461,98.29
155,Bearded Tit,Panurus biarmicus,299,63.75
156,Woodlark,Lullula arborea,210,44.78
157,Skylark,Alauda arvensis,440,93.82
158,Sand Martin,Riparia riparia,426,90.83
159,Swallow,Hirundo rustica,437,93.18
160,House Martin,Delichon urbicum,432,92.11
161,Cetti's Warbler,Cettia cetti,387,82.52
162,Long-tailed Tit,Aegithalos caudatus,453,96.59
163,Wood Warbler,Phylloscopus sibilatrix,179,38.17
164,Willow Warbler,Phylloscopus trochilus,415,88.49
165,Chiffchaff,Phylloscopus collybita,441,94.03
166,Arctic Warbler,Phylloscopus borealis,29,6.18
167,Sedge Warbler,Acrocephalus schoenobaenus,413,88.06
168,Reed Warbler,Acrocephalus scirpaceus,399,85.07
169,Savi's Warbler,Locustella luscinioides,60,12.79
170,Grasshopper Warbler,Locustella naevia,264,56.29
171,Blackcap,Sylvia atricapilla,437,93.18
172,Garden Warbler,Sylvia borin,343,73.13
173,Eastern Subalpine Warbler,Curruca cantillans,49,10.45
174,Whitethroat,Curruca communis,421,89.77
175,Goldcrest,Regulus regulus,427,91.04
176,Wren,Troglodytes troglodytes,458,97.65
177,Nuthatch,Sitta europaea,431,91.90
178,Treecreeper,Certhia familiaris,420,89.55
179,Northern Mockingbird,Mimus polyglottos,132,28.14
180,Starling,Sturnus vulgaris,458,97.65
181,Song Thrush,Turdus philomelos,454,96.80
182,Mistle Thrush,Turdus viscivorus,437,93.18
183,Redwing,Turdus iliacus,443,94.46
184,Blackbird,Turdus merula,462,98.51
185,Fieldfare,Turdus pilaris,422,89.98
186,Robin,Erithacus rubecula,462,98.51
187,Bluethroat,Luscinia svecica,83,17.70
188,Taiga Flycatcher,Ficedula albicilla,47,10.02
189,Pied Flycatcher,Ficedula hypoleuca,286,60.98
190,Red-flanked Bluetail,Tarsiger cyanurus,52,11.09
191,Redstart,Phoenicurus phoenicurus,335,71.43
192,Stonechat,Saxicola rubicola,432,92.11
193,Wheatear,Oenanthe oenanthe,409,87.21
194,Pied Wheatear,Oenanthe pleschanka,21,4.48
195,Dipper,Cinclus cinclus,289,61.62
196,Tree Sparrow,Passer montanus,328,69.94
197,House Sparrow,Passer domesticus,458,97.65
198,Dunnock,Prunella modularis,462,98.51
199,Yellow Wagtail,Motacilla flava,368,78.46
200,Grey Wagtail,Motacilla cinerea,440,93.82
201,Pied Wagtail,Motacilla alba,460,98.08
202,Meadow Pipit,Anthus pratensis,434,92.54
203,Tree Pipit,Anthus trivialis,307,65.46
204,Rock Pipit,Anthus petrosus,372,79.32
205,Chaffinch,Fringilla coelebs,457,97.44
206,Brambling,Fringilla montifringilla,310,66.10
207,Bullfinch,Pyrrhula pyrrhula,429,91.47
208,Greenfinch,Chloris chloris,453,96.59
209,Linnet,Linaria cannabina,437,93.18
210,Lesser Redpoll,Acanthis cabaret,341,72.71
211,Scottish Crossbill,Loxia scotica,21,4.48
212,Common Crossbill,Loxia curvirostra,263,56.08
213,Two-barred Crossbill,Loxia leucoptera,22,4.69
214,Goldfinch,Carduelis carduelis,454,96.80
215,Siskin,Spinus spinus,414,88.27
216,Snow Bunting,Plectrophenax nivalis,254,54.16
217,Corn Bunting,Emberiza calandra,289,61.62
218,Yellowhammer,Emberiza citrinella,407,86.78
219,Cirl Bunting,Emberiza cirlus,103,21.96
220,Reed Bunting,Emberiza schoeniclus,439,93.60