Geoffrey Yarnell: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 130 of 130 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,Greylag Goose,Anser anser,449,95.74
4,Pink-footed Goose,Anser brachyrhynchus,357,76.12
5,Mute Swan,Cygnus olor,461,98.29
6,Whooper Swan,Cygnus cygnus,310,66.10
7,Shelduck,Tadorna tadorna,441,94.03
8,Shoveler,Spatula clypeata,444,94.67
9,Gadwall,Mareca strepera,442,94.24
10,Wigeon,Mareca penelope,442,94.24
11,Mallard,Anas platyrhynchos,461,98.29
12,Pintail,Anas acuta,390,83.16
13,Teal,Anas crecca,445,94.88
14,Green-winged Teal,Anas carolinensis,74,15.78
15,Pochard,Aythya ferina,426,90.83
16,Tufted Duck,Aythya fuligula,457,97.44
17,Eider,Somateria mollissima,333,71.00
18,Velvet Scoter,Melanitta fusca,171,36.46
19,Goldeneye,Bucephala clangula,383,81.66
20,Smew,Mergellus albellus,159,33.90
21,Hooded Merganser,Lophodytes cucullatus,13,2.77
22,Goosander,Mergus merganser,390,83.16
23,Red-breasted Merganser,Mergus serrator,324,69.08
24,Grey Partridge,Perdix perdix,294,62.69
25,Pheasant,Phasianus colchicus,454,96.80
26,Red-legged Partridge,Alectoris rufa,400,85.29
27,Swift,Apus apus,430,91.68
28,Cuckoo,Cuculus canorus,382,81.45
29,Rock Dove (Feral Pigeon),Columba livia,403,85.93
30,Woodpigeon,Columba palumbus,463,98.72
31,Collared Dove,Streptopelia decaocto,453,96.59
32,Moorhen,Gallinula chloropus,458,97.65
33,Coot,Fulica atra,456,97.23
34,Little Grebe,Tachybaptus ruficollis,443,94.46
35,Great Crested Grebe,Podiceps cristatus,447,95.31
36,Oystercatcher,Haematopus ostralegus,448,95.52
37,Grey Plover,Pluvialis squatarola,343,73.13
38,Ringed Plover,Charadrius hiaticula,399,85.07
39,Lapwing,Vanellus vanellus,453,96.59
40,Curlew,Numenius arquata,436,92.96
41,Bar-tailed Godwit,Limosa lapponica,368,78.46
42,Snipe,Gallinago gallinago,413,88.06
43,Common Sandpiper,Actitis hypoleucos,397,84.65
44,Wood Sandpiper,Tringa glareola,270,57.57
45,Redshank,Tringa totanus,434,92.54
46,Turnstone,Arenaria interpres,411,87.63
47,Sanderling,Calidris alba,369,78.68
48,Dunlin,Calidris alpina,418,89.13
49,Purple Sandpiper,Calidris maritima,265,56.50
50,Arctic Tern,Sterna paradisaea,290,61.83
51,Common Tern,Sterna hirundo,407,86.78
52,Sandwich Tern,Thalasseus sandvicensis,372,79.32
53,Little Gull,Hydrocoloeus minutus,281,59.91
54,Kittiwake,Rissa tridactyla,382,81.45
55,Black-headed Gull,Chroicocephalus ridibundus,460,98.08
56,Mediterranean Gull,Ichthyaetus melanocephalus,366,78.04
57,Common Gull,Larus canus,418,89.13
58,Herring Gull,Larus argentatus,457,97.44
59,Great Black-backed Gull,Larus marinus,433,92.32
60,Glaucous Gull,Larus hyperboreus,88,18.76
61,Lesser Black-backed Gull,Larus fuscus,448,95.52
62,Iceland Gull,Larus glaucoides,158,33.69
63,Razorbill,Alca torda,377,80.38
64,Common Guillemot,Uria aalge,387,82.52
65,Red-throated Diver,Gavia stellata,330,70.36
66,Great Northern Diver,Gavia immer,287,61.19
67,Fulmar,Fulmarus glacialis,389,82.94
68,Gannet,Morus bassanus,405,86.35
69,Cormorant,Phalacrocorax carbo,457,97.44
70,Shag,Gulosus aristotelis,370,78.89
71,Little Egret,Egretta garzetta,444,94.67
72,Great White Egret,Ardea alba,387,82.52
73,Grey Heron,Ardea cinerea,454,96.80
74,Osprey,Pandion haliaetus,294,62.69
75,Marsh Harrier,Circus aeruginosus,406,86.57
76,Red Kite,Milvus milvus,434,92.54
77,Buzzard,Buteo buteo,457,97.44
78,Great Spotted Woodpecker,Dendrocopos major,443,94.46
79,Kestrel,Falco tinnunculus,453,96.59
80,Merlin,Falco columbarius,275,58.64
81,Peregrine,Falco peregrinus,421,89.77
82,Jay,Garrulus glandarius,447,95.31
83,Magpie,Pica pica,460,98.08
84,Jackdaw,Coloeus monedula,459,97.87
85,Rook,Corvus frugilegus,453,96.59
86,Carrion Crow,Corvus corone,460,98.08
87,Hooded Crow,Corvus cornix,193,41.15
88,Raven,Corvus corax,415,88.49
89,Coal Tit,Periparus ater,446,95.10
90,Blue Tit,Cyanistes caeruleus,463,98.72
91,Great Tit,Parus major,461,98.29
92,Skylark,Alauda arvensis,440,93.82
93,Sand Martin,Riparia riparia,426,90.83
94,Swallow,Hirundo rustica,437,93.18
95,House Martin,Delichon urbicum,432,92.11
96,Long-tailed Tit,Aegithalos caudatus,453,96.59
97,Willow Warbler,Phylloscopus trochilus,415,88.49
98,Sedge Warbler,Acrocephalus schoenobaenus,413,88.06
99,Blackcap,Sylvia atricapilla,437,93.18
100,Whitethroat,Curruca communis,421,89.77
101,Wren,Troglodytes troglodytes,458,97.65
102,Treecreeper,Certhia familiaris,420,89.55
103,Starling,Sturnus vulgaris,458,97.65
104,Song Thrush,Turdus philomelos,454,96.80
105,Mistle Thrush,Turdus viscivorus,437,93.18
106,Redwing,Turdus iliacus,443,94.46
107,Blackbird,Turdus merula,462,98.51
108,Fieldfare,Turdus pilaris,422,89.98
109,Spotted Flycatcher,Muscicapa striata,330,70.36
110,Robin,Erithacus rubecula,462,98.51
111,Stonechat,Saxicola rubicola,432,92.11
112,Wheatear,Oenanthe oenanthe,409,87.21
113,Dipper,Cinclus cinclus,289,61.62
114,House Sparrow,Passer domesticus,458,97.65
115,Dunnock,Prunella modularis,462,98.51
116,Grey Wagtail,Motacilla cinerea,440,93.82
117,Pied Wagtail,Motacilla alba,460,98.08
118,Tree Pipit,Anthus trivialis,307,65.46
119,Rock Pipit,Anthus petrosus,372,79.32
120,Chaffinch,Fringilla coelebs,457,97.44
121,Bullfinch,Pyrrhula pyrrhula,429,91.47
122,Greenfinch,Chloris chloris,453,96.59
123,Linnet,Linaria cannabina,437,93.18
124,Common Redpoll,Acanthis flammea,79,16.84
125,Lesser Redpoll,Acanthis cabaret,341,72.71
126,Goldfinch,Carduelis carduelis,454,96.80
127,Siskin,Spinus spinus,414,88.27
128,Corn Bunting,Emberiza calandra,289,61.62
129,Yellowhammer,Emberiza citrinella,407,86.78
130,Reed Bunting,Emberiza schoeniclus,439,93.60