John Conlin-Hulme: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 143 of 143 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,Shelduck,Tadorna tadorna,441,94.03
7,Mandarin Duck,Aix galericulata,310,66.10
8,Garganey,Spatula querquedula,282,60.13
9,Shoveler,Spatula clypeata,444,94.67
10,Gadwall,Mareca strepera,442,94.24
11,Wigeon,Mareca penelope,442,94.24
12,Mallard,Anas platyrhynchos,461,98.29
13,Teal,Anas crecca,445,94.88
14,Pochard,Aythya ferina,426,90.83
15,Tufted Duck,Aythya fuligula,457,97.44
16,Eider,Somateria mollissima,333,71.00
17,Goldeneye,Bucephala clangula,383,81.66
18,Goosander,Mergus merganser,390,83.16
19,Red-breasted Merganser,Mergus serrator,324,69.08
20,Red Grouse,Lagopus lagopus,209,44.56
21,Grey Partridge,Perdix perdix,294,62.69
22,Pheasant,Phasianus colchicus,454,96.80
23,Red-legged Partridge,Alectoris rufa,400,85.29
24,Swift,Apus apus,430,91.68
25,Cuckoo,Cuculus canorus,382,81.45
26,Rock Dove (Feral Pigeon),Columba livia,403,85.93
27,Stock Dove,Columba oenas,416,88.70
28,Woodpigeon,Columba palumbus,463,98.72
29,Collared Dove,Streptopelia decaocto,453,96.59
30,Water Rail,Rallus aquaticus,353,75.27
31,Moorhen,Gallinula chloropus,458,97.65
32,Coot,Fulica atra,456,97.23
33,Little Grebe,Tachybaptus ruficollis,443,94.46
34,Great Crested Grebe,Podiceps cristatus,447,95.31
35,Black-necked Grebe,Podiceps nigricollis,255,54.37
36,Oystercatcher,Haematopus ostralegus,448,95.52
37,Avocet,Recurvirostra avosetta,394,84.01
38,Golden Plover,Pluvialis apricaria,389,82.94
39,Lapwing,Vanellus vanellus,453,96.59
40,White-tailed Plover,Vanellus leucurus,200,42.64
41,Curlew,Numenius arquata,436,92.96
42,Bar-tailed Godwit,Limosa lapponica,368,78.46
43,Black-tailed Godwit,Limosa limosa,411,87.63
44,Snipe,Gallinago gallinago,413,88.06
45,Common Sandpiper,Actitis hypoleucos,397,84.65
46,Green Sandpiper,Tringa ochropus,351,74.84
47,Redshank,Tringa totanus,434,92.54
48,Spotted Redshank,Tringa erythropus,331,70.58
49,Greenshank,Tringa nebularia,382,81.45
50,Turnstone,Arenaria interpres,411,87.63
51,Knot,Calidris canutus,349,74.41
52,Ruff,Calidris pugnax,369,78.68
53,Sanderling,Calidris alba,369,78.68
54,Dunlin,Calidris alpina,418,89.13
55,Arctic Tern,Sterna paradisaea,290,61.83
56,Common Tern,Sterna hirundo,407,86.78
57,Sandwich Tern,Thalasseus sandvicensis,372,79.32
58,Kittiwake,Rissa tridactyla,382,81.45
59,Black-headed Gull,Chroicocephalus ridibundus,460,98.08
60,Common Gull,Larus canus,418,89.13
61,Herring Gull,Larus argentatus,457,97.44
62,Great Black-backed Gull,Larus marinus,433,92.32
63,Lesser Black-backed Gull,Larus fuscus,448,95.52
64,Black-throated Diver,Gavia arctica,178,37.95
65,Black-browed Albatross,Thalassarche melanophris,200,42.64
66,Fulmar,Fulmarus glacialis,389,82.94
67,Sooty Shearwater,Ardenna grisea,126,26.87
68,Gannet,Morus bassanus,405,86.35
69,Cormorant,Phalacrocorax carbo,457,97.44
70,Shag,Gulosus aristotelis,370,78.89
71,Spoonbill,Platalea leucorodia,335,71.43
72,Bittern,Botaurus stellaris,294,62.69
73,Little Egret,Egretta garzetta,444,94.67
74,Cattle Egret,Bubulcus ibis,300,63.97
75,Great White Egret,Ardea alba,387,82.52
76,Grey Heron,Ardea cinerea,454,96.80
77,Sparrowhawk,Accipiter nisus,443,94.46
78,Marsh Harrier,Circus aeruginosus,406,86.57
79,Red Kite,Milvus milvus,434,92.54
80,Buzzard,Buteo buteo,457,97.44
81,Short-eared Owl,Asio flammeus,262,55.86
82,Tawny Owl,Strix aluco,364,77.61
83,Kingfisher,Alcedo atthis,410,87.42
84,Great Spotted Woodpecker,Dendrocopos major,443,94.46
85,Green Woodpecker,Picus viridis,395,84.22
86,Kestrel,Falco tinnunculus,453,96.59
87,Merlin,Falco columbarius,275,58.64
88,Peregrine,Falco peregrinus,421,89.77
89,Ring-necked Parakeet,Psittacula krameri,290,61.83
90,Jay,Garrulus glandarius,447,95.31
91,Magpie,Pica pica,460,98.08
92,Jackdaw,Coloeus monedula,459,97.87
93,Rook,Corvus frugilegus,453,96.59
94,Carrion Crow,Corvus corone,460,98.08
95,Raven,Corvus corax,415,88.49
96,Coal Tit,Periparus ater,446,95.10
97,Willow Tit,Poecile montanus,179,38.17
98,Blue Tit,Cyanistes caeruleus,463,98.72
99,Great Tit,Parus major,461,98.29
100,Bearded Tit,Panurus biarmicus,299,63.75
101,Skylark,Alauda arvensis,440,93.82
102,Sand Martin,Riparia riparia,426,90.83
103,Swallow,Hirundo rustica,437,93.18
104,House Martin,Delichon urbicum,432,92.11
105,Cetti's Warbler,Cettia cetti,387,82.52
106,Long-tailed Tit,Aegithalos caudatus,453,96.59
107,Willow Warbler,Phylloscopus trochilus,415,88.49
108,Chiffchaff,Phylloscopus collybita,441,94.03
109,Sedge Warbler,Acrocephalus schoenobaenus,413,88.06
110,Reed Warbler,Acrocephalus scirpaceus,399,85.07
111,Blackcap,Sylvia atricapilla,437,93.18
112,Garden Warbler,Sylvia borin,343,73.13
113,Whitethroat,Curruca communis,421,89.77
114,Goldcrest,Regulus regulus,427,91.04
115,Wren,Troglodytes troglodytes,458,97.65
116,Nuthatch,Sitta europaea,431,91.90
117,Treecreeper,Certhia familiaris,420,89.55
118,Starling,Sturnus vulgaris,458,97.65
119,Song Thrush,Turdus philomelos,454,96.80
120,Mistle Thrush,Turdus viscivorus,437,93.18
121,Redwing,Turdus iliacus,443,94.46
122,Blackbird,Turdus merula,462,98.51
123,Fieldfare,Turdus pilaris,422,89.98
124,Robin,Erithacus rubecula,462,98.51
125,Stonechat,Saxicola rubicola,432,92.11
126,Wheatear,Oenanthe oenanthe,409,87.21
127,Dipper,Cinclus cinclus,289,61.62
128,Tree Sparrow,Passer montanus,328,69.94
129,House Sparrow,Passer domesticus,458,97.65
130,Dunnock,Prunella modularis,462,98.51
131,Yellow Wagtail,Motacilla flava,368,78.46
132,Grey Wagtail,Motacilla cinerea,440,93.82
133,Pied Wagtail,Motacilla alba,460,98.08
134,Meadow Pipit,Anthus pratensis,434,92.54
135,Tree Pipit,Anthus trivialis,307,65.46
136,Water Pipit,Anthus spinoletta,155,33.05
137,Chaffinch,Fringilla coelebs,457,97.44
138,Bullfinch,Pyrrhula pyrrhula,429,91.47
139,Greenfinch,Chloris chloris,453,96.59
140,Linnet,Linaria cannabina,437,93.18
141,Goldfinch,Carduelis carduelis,454,96.80
142,Yellowhammer,Emberiza citrinella,407,86.78
143,Reed Bunting,Emberiza schoeniclus,439,93.60