Andrew McCafferty: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 186 of 186 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,Greylag Goose,Anser anser,449,95.74
5,Pink-footed Goose,Anser brachyrhynchus,357,76.12
6,White-fronted Goose,Anser albifrons,238,50.75
7,Mute Swan,Cygnus olor,461,98.29
8,Bewick's Swan,Cygnus columbianus,135,28.78
9,Whooper Swan,Cygnus cygnus,310,66.10
10,Egyptian Goose,Alopochen aegyptiaca,370,78.89
11,Shelduck,Tadorna tadorna,441,94.03
12,Garganey,Spatula querquedula,282,60.13
13,Shoveler,Spatula clypeata,444,94.67
14,Gadwall,Mareca strepera,442,94.24
15,Wigeon,Mareca penelope,442,94.24
16,Mallard,Anas platyrhynchos,461,98.29
17,Pintail,Anas acuta,390,83.16
18,Teal,Anas crecca,445,94.88
19,Green-winged Teal,Anas carolinensis,74,15.78
20,Pochard,Aythya ferina,426,90.83
21,Ring-necked Duck,Aythya collaris,190,40.51
22,Tufted Duck,Aythya fuligula,457,97.44
23,Eider,Somateria mollissima,333,71.00
24,Common Scoter,Melanitta nigra,347,73.99
25,Long-tailed Duck,Clangula hyemalis,205,43.71
26,Goldeneye,Bucephala clangula,383,81.66
27,Goosander,Mergus merganser,390,83.16
28,Red-breasted Merganser,Mergus serrator,324,69.08
29,Red Grouse,Lagopus lagopus,209,44.56
30,Grey Partridge,Perdix perdix,294,62.69
31,Pheasant,Phasianus colchicus,454,96.80
32,Red-legged Partridge,Alectoris rufa,400,85.29
33,Swift,Apus apus,430,91.68
34,Cuckoo,Cuculus canorus,382,81.45
35,Stock Dove,Columba oenas,416,88.70
36,Woodpigeon,Columba palumbus,463,98.72
37,Collared Dove,Streptopelia decaocto,453,96.59
38,Water Rail,Rallus aquaticus,353,75.27
39,Moorhen,Gallinula chloropus,458,97.65
40,Coot,Fulica atra,456,97.23
41,Crane,Grus grus,199,42.43
42,Little Grebe,Tachybaptus ruficollis,443,94.46
43,Pied-billed Grebe,Podilymbus podiceps,21,4.48
44,Great Crested Grebe,Podiceps cristatus,447,95.31
45,Slavonian Grebe,Podiceps auritus,235,50.11
46,Oystercatcher,Haematopus ostralegus,448,95.52
47,Avocet,Recurvirostra avosetta,394,84.01
48,Grey Plover,Pluvialis squatarola,343,73.13
49,Golden Plover,Pluvialis apricaria,389,82.94
50,Ringed Plover,Charadrius hiaticula,399,85.07
51,Little Ringed Plover,Charadrius dubius,360,76.76
52,Lapwing,Vanellus vanellus,453,96.59
53,Eurasian Whimbrel,Numenius phaeopus,349,74.41
54,Curlew,Numenius arquata,436,92.96
55,Bar-tailed Godwit,Limosa lapponica,368,78.46
56,Black-tailed Godwit,Limosa limosa,411,87.63
57,Woodcock,Scolopax rusticola,291,62.05
58,Snipe,Gallinago gallinago,413,88.06
59,Red-necked Phalarope,Phalaropus lobatus,65,13.86
60,Common Sandpiper,Actitis hypoleucos,397,84.65
61,Green Sandpiper,Tringa ochropus,351,74.84
62,Wood Sandpiper,Tringa glareola,270,57.57
63,Redshank,Tringa totanus,434,92.54
64,Lesser Yellowlegs,Tringa flavipes,45,9.59
65,Spotted Redshank,Tringa erythropus,331,70.58
66,Greenshank,Tringa nebularia,382,81.45
67,Greater Yellowlegs,Tringa melanoleuca,14,2.99
68,Turnstone,Arenaria interpres,411,87.63
69,Knot,Calidris canutus,349,74.41
70,Ruff,Calidris pugnax,369,78.68
71,Curlew Sandpiper,Calidris ferruginea,259,55.22
72,Sanderling,Calidris alba,369,78.68
73,Dunlin,Calidris alpina,418,89.13
74,Little Stint,Calidris minuta,290,61.83
75,Pectoral Sandpiper,Calidris melanotos,177,37.74
76,Little Tern,Sternula albifrons,286,60.98
77,Black Tern,Chlidonias niger,167,35.61
78,Arctic Tern,Sterna paradisaea,290,61.83
79,Common Tern,Sterna hirundo,407,86.78
80,Sandwich Tern,Thalasseus sandvicensis,372,79.32
81,Little Gull,Hydrocoloeus minutus,281,59.91
82,Kittiwake,Rissa tridactyla,382,81.45
83,Black-headed Gull,Chroicocephalus ridibundus,460,98.08
84,Mediterranean Gull,Ichthyaetus melanocephalus,366,78.04
85,Common Gull,Larus canus,418,89.13
86,Herring Gull,Larus argentatus,457,97.44
87,Great Black-backed Gull,Larus marinus,433,92.32
88,Lesser Black-backed Gull,Larus fuscus,448,95.52
89,Arctic Skua,Stercorarius parasiticus,204,43.50
90,Puffin,Fratercula arctica,305,65.03
91,Razorbill,Alca torda,377,80.38
92,Common Guillemot,Uria aalge,387,82.52
93,Red-throated Diver,Gavia stellata,330,70.36
94,Black-browed Albatross,Thalassarche melanophris,200,42.64
95,Fulmar,Fulmarus glacialis,389,82.94
96,Sooty Shearwater,Ardenna grisea,126,26.87
97,Manx Shearwater,Puffinus puffinus,246,52.45
98,Gannet,Morus bassanus,405,86.35
99,Cormorant,Phalacrocorax carbo,457,97.44
100,Shag,Gulosus aristotelis,370,78.89
101,Spoonbill,Platalea leucorodia,335,71.43
102,Bittern,Botaurus stellaris,294,62.69
103,Little Egret,Egretta garzetta,444,94.67
104,Great White Egret,Ardea alba,387,82.52
105,Grey Heron,Ardea cinerea,454,96.80
106,Osprey,Pandion haliaetus,294,62.69
107,Sparrowhawk,Accipiter nisus,443,94.46
108,Marsh Harrier,Circus aeruginosus,406,86.57
109,Red Kite,Milvus milvus,434,92.54
110,Buzzard,Buteo buteo,457,97.44
111,Barn Owl,Tyto alba,371,79.10
112,Short-eared Owl,Asio flammeus,262,55.86
113,Tawny Owl,Strix aluco,364,77.61
114,Kingfisher,Alcedo atthis,410,87.42
115,Great Spotted Woodpecker,Dendrocopos major,443,94.46
116,Green Woodpecker,Picus viridis,395,84.22
117,Kestrel,Falco tinnunculus,453,96.59
118,Peregrine,Falco peregrinus,421,89.77
119,Ring-necked Parakeet,Psittacula krameri,290,61.83
120,Jay,Garrulus glandarius,447,95.31
121,Magpie,Pica pica,460,98.08
122,Jackdaw,Coloeus monedula,459,97.87
123,Rook,Corvus frugilegus,453,96.59
124,Carrion Crow,Corvus corone,460,98.08
125,Raven,Corvus corax,415,88.49
126,Coal Tit,Periparus ater,446,95.10
127,Marsh Tit,Poecile palustris,318,67.80
128,Willow Tit,Poecile montanus,179,38.17
129,Blue Tit,Cyanistes caeruleus,463,98.72
130,Great Tit,Parus major,461,98.29
131,Bearded Tit,Panurus biarmicus,299,63.75
132,Skylark,Alauda arvensis,440,93.82
133,Sand Martin,Riparia riparia,426,90.83
134,Swallow,Hirundo rustica,437,93.18
135,House Martin,Delichon urbicum,432,92.11
136,Cetti's Warbler,Cettia cetti,387,82.52
137,Long-tailed Tit,Aegithalos caudatus,453,96.59
138,Wood Warbler,Phylloscopus sibilatrix,179,38.17
139,Willow Warbler,Phylloscopus trochilus,415,88.49
140,Chiffchaff,Phylloscopus collybita,441,94.03
141,Sedge Warbler,Acrocephalus schoenobaenus,413,88.06
142,Reed Warbler,Acrocephalus scirpaceus,399,85.07
143,Grasshopper Warbler,Locustella naevia,264,56.29
144,Blackcap,Sylvia atricapilla,437,93.18
145,Garden Warbler,Sylvia borin,343,73.13
146,Lesser Whitethroat,Curruca curruca,332,70.79
147,Whitethroat,Curruca communis,421,89.77
148,Goldcrest,Regulus regulus,427,91.04
149,Wren,Troglodytes troglodytes,458,97.65
150,Nuthatch,Sitta europaea,431,91.90
151,Treecreeper,Certhia familiaris,420,89.55
152,Starling,Sturnus vulgaris,458,97.65
153,Song Thrush,Turdus philomelos,454,96.80
154,Mistle Thrush,Turdus viscivorus,437,93.18
155,Redwing,Turdus iliacus,443,94.46
156,Blackbird,Turdus merula,462,98.51
157,Fieldfare,Turdus pilaris,422,89.98
158,Ring Ouzel,Turdus torquatus,261,55.65
159,Spotted Flycatcher,Muscicapa striata,330,70.36
160,Robin,Erithacus rubecula,462,98.51
161,Pied Flycatcher,Ficedula hypoleuca,286,60.98
162,Redstart,Phoenicurus phoenicurus,335,71.43
163,Whinchat,Saxicola rubetra,302,64.39
164,Stonechat,Saxicola rubicola,432,92.11
165,Wheatear,Oenanthe oenanthe,409,87.21
166,Dipper,Cinclus cinclus,289,61.62
167,Tree Sparrow,Passer montanus,328,69.94
168,House Sparrow,Passer domesticus,458,97.65
169,Dunnock,Prunella modularis,462,98.51
170,Yellow Wagtail,Motacilla flava,368,78.46
171,Grey Wagtail,Motacilla cinerea,440,93.82
172,Pied Wagtail,Motacilla alba,460,98.08
173,Meadow Pipit,Anthus pratensis,434,92.54
174,Tree Pipit,Anthus trivialis,307,65.46
175,Rock Pipit,Anthus petrosus,372,79.32
176,Chaffinch,Fringilla coelebs,457,97.44
177,Brambling,Fringilla montifringilla,310,66.10
178,Bullfinch,Pyrrhula pyrrhula,429,91.47
179,Greenfinch,Chloris chloris,453,96.59
180,Twite,Linaria flavirostris,178,37.95
181,Linnet,Linaria cannabina,437,93.18
182,Lesser Redpoll,Acanthis cabaret,341,72.71
183,Goldfinch,Carduelis carduelis,454,96.80
184,Siskin,Spinus spinus,414,88.27
185,Yellowhammer,Emberiza citrinella,407,86.78
186,Reed Bunting,Emberiza schoeniclus,439,93.60