Brian Thompson: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 180 of 180 total.
Seq.,Species,Scientific Name,Seen By Other Listers,Other Listers (%)
1,Canada Goose,Branta canadensis,460,98.08
2,Greylag Goose,Anser anser,449,95.74
3,Tundra Bean Goose,Anser serrirostris,83,17.70
4,White-fronted Goose,Anser albifrons,238,50.75
5,Mute Swan,Cygnus olor,461,98.29
6,Egyptian Goose,Alopochen aegyptiaca,370,78.89
7,Shelduck,Tadorna tadorna,441,94.03
8,Mandarin Duck,Aix galericulata,310,66.10
9,Garganey,Spatula querquedula,282,60.13
10,Shoveler,Spatula clypeata,444,94.67
11,Gadwall,Mareca strepera,442,94.24
12,Wigeon,Mareca penelope,442,94.24
13,Mallard,Anas platyrhynchos,461,98.29
14,Pintail,Anas acuta,390,83.16
15,Teal,Anas crecca,445,94.88
16,Green-winged Teal,Anas carolinensis,74,15.78
17,Red-crested Pochard,Netta rufina,170,36.25
18,Pochard,Aythya ferina,426,90.83
19,Tufted Duck,Aythya fuligula,457,97.44
20,Long-tailed Duck,Clangula hyemalis,205,43.71
21,Goldeneye,Bucephala clangula,383,81.66
22,Goosander,Mergus merganser,390,83.16
23,Pheasant,Phasianus colchicus,454,96.80
24,Swift,Apus apus,430,91.68
25,Great Bustard,Otis tarda,17,3.62
26,Cuckoo,Cuculus canorus,382,81.45
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,Slavonian Grebe,Podiceps auritus,235,50.11
36,Black-necked Grebe,Podiceps nigricollis,255,54.37
37,Oystercatcher,Haematopus ostralegus,448,95.52
38,Black-winged Stilt,Himantopus himantopus,82,17.48
39,Avocet,Recurvirostra avosetta,394,84.01
40,American Golden Plover,Pluvialis dominica,73,15.57
41,Dotterel,Eudromias morinellus,109,23.24
42,Ringed Plover,Charadrius hiaticula,399,85.07
43,Little Ringed Plover,Charadrius dubius,360,76.76
44,Lapwing,Vanellus vanellus,453,96.59
45,Eurasian Whimbrel,Numenius phaeopus,349,74.41
46,Curlew,Numenius arquata,436,92.96
47,Black-tailed Godwit,Limosa limosa,411,87.63
48,Jack Snipe,Lymnocryptes minimus,232,49.47
49,Woodcock,Scolopax rusticola,291,62.05
50,Snipe,Gallinago gallinago,413,88.06
51,Common Sandpiper,Actitis hypoleucos,397,84.65
52,Green Sandpiper,Tringa ochropus,351,74.84
53,Wood Sandpiper,Tringa glareola,270,57.57
54,Redshank,Tringa totanus,434,92.54
55,Spotted Redshank,Tringa erythropus,331,70.58
56,Greenshank,Tringa nebularia,382,81.45
57,Turnstone,Arenaria interpres,411,87.63
58,Ruff,Calidris pugnax,369,78.68
59,Curlew Sandpiper,Calidris ferruginea,259,55.22
60,Sanderling,Calidris alba,369,78.68
61,Dunlin,Calidris alpina,418,89.13
62,Purple Sandpiper,Calidris maritima,265,56.50
63,Little Stint,Calidris minuta,290,61.83
64,Pectoral Sandpiper,Calidris melanotos,177,37.74
65,Little Tern,Sternula albifrons,286,60.98
66,Whiskered Tern,Chlidonias hybrida,35,7.46
67,Black Tern,Chlidonias niger,167,35.61
68,Arctic Tern,Sterna paradisaea,290,61.83
69,Common Tern,Sterna hirundo,407,86.78
70,Sandwich Tern,Thalasseus sandvicensis,372,79.32
71,Little Gull,Hydrocoloeus minutus,281,59.91
72,Kittiwake,Rissa tridactyla,382,81.45
73,Sabine's Gull,Xema sabini,38,8.10
74,Bonaparte's Gull,Chroicocephalus philadelphia,107,22.81
75,Black-headed Gull,Chroicocephalus ridibundus,460,98.08
76,Mediterranean Gull,Ichthyaetus melanocephalus,366,78.04
77,Common Gull,Larus canus,418,89.13
78,Herring Gull,Larus argentatus,457,97.44
79,Yellow-legged Gull,Larus michahellis,226,48.19
80,Great Black-backed Gull,Larus marinus,433,92.32
81,Lesser Black-backed Gull,Larus fuscus,448,95.52
82,Iceland Gull,Larus glaucoides,158,33.69
83,Pomarine Skua,Stercorarius pomarinus,81,17.27
84,Puffin,Fratercula arctica,305,65.03
85,Razorbill,Alca torda,377,80.38
86,Little Auk,Alle alle,98,20.90
87,Common Guillemot,Uria aalge,387,82.52
88,Pacific Diver,Gavia pacifica,30,6.40
89,Fulmar,Fulmarus glacialis,389,82.94
90,Gannet,Morus bassanus,405,86.35
91,Cormorant,Phalacrocorax carbo,457,97.44
92,Shag,Gulosus aristotelis,370,78.89
93,Glossy Ibis,Plegadis falcinellus,213,45.42
94,Spoonbill,Platalea leucorodia,335,71.43
95,Bittern,Botaurus stellaris,294,62.69
96,Little Egret,Egretta garzetta,444,94.67
97,Cattle Egret,Bubulcus ibis,300,63.97
98,Great White Egret,Ardea alba,387,82.52
99,Grey Heron,Ardea cinerea,454,96.80
100,Osprey,Pandion haliaetus,294,62.69
101,Sparrowhawk,Accipiter nisus,443,94.46
102,Marsh Harrier,Circus aeruginosus,406,86.57
103,Red Kite,Milvus milvus,434,92.54
104,Buzzard,Buteo buteo,457,97.44
105,Little Owl,Athene noctua,281,59.91
106,Roller,Coracias garrulus,113,24.09
107,Kingfisher,Alcedo atthis,410,87.42
108,Great Spotted Woodpecker,Dendrocopos major,443,94.46
109,Green Woodpecker,Picus viridis,395,84.22
110,Kestrel,Falco tinnunculus,453,96.59
111,Red-footed Falcon,Falco vespertinus,32,6.82
112,Hobby,Falco subbuteo,347,73.99
113,Peregrine,Falco peregrinus,421,89.77
114,Jay,Garrulus glandarius,447,95.31
115,Magpie,Pica pica,460,98.08
116,Jackdaw,Coloeus monedula,459,97.87
117,Rook,Corvus frugilegus,453,96.59
118,Carrion Crow,Corvus corone,460,98.08
119,Raven,Corvus corax,415,88.49
120,Coal Tit,Periparus ater,446,95.10
121,Blue Tit,Cyanistes caeruleus,463,98.72
122,Great Tit,Parus major,461,98.29
123,Penduline Tit,Remiz pendulinus,25,5.33
124,Bearded Tit,Panurus biarmicus,299,63.75
125,Woodlark,Lullula arborea,210,44.78
126,Skylark,Alauda arvensis,440,93.82
127,Sand Martin,Riparia riparia,426,90.83
128,Swallow,Hirundo rustica,437,93.18
129,House Martin,Delichon urbicum,432,92.11
130,Long-tailed Tit,Aegithalos caudatus,453,96.59
131,Wood Warbler,Phylloscopus sibilatrix,179,38.17
132,Willow Warbler,Phylloscopus trochilus,415,88.49
133,Chiffchaff,Phylloscopus collybita,441,94.03
134,Sedge Warbler,Acrocephalus schoenobaenus,413,88.06
135,River Warbler,Locustella fluviatilis,128,27.29
136,Blackcap,Sylvia atricapilla,437,93.18
137,Garden Warbler,Sylvia borin,343,73.13
138,Lesser Whitethroat,Curruca curruca,332,70.79
139,Whitethroat,Curruca communis,421,89.77
140,Dartford Warbler,Curruca undata,184,39.23
141,Goldcrest,Regulus regulus,427,91.04
142,Wren,Troglodytes troglodytes,458,97.65
143,Nuthatch,Sitta europaea,431,91.90
144,Treecreeper,Certhia familiaris,420,89.55
145,Starling,Sturnus vulgaris,458,97.65
146,Song Thrush,Turdus philomelos,454,96.80
147,Mistle Thrush,Turdus viscivorus,437,93.18
148,Redwing,Turdus iliacus,443,94.46
149,Blackbird,Turdus merula,462,98.51
150,Fieldfare,Turdus pilaris,422,89.98
151,Ring Ouzel,Turdus torquatus,261,55.65
152,Spotted Flycatcher,Muscicapa striata,330,70.36
153,Robin,Erithacus rubecula,462,98.51
154,Black Redstart,Phoenicurus ochruros,230,49.04
155,Redstart,Phoenicurus phoenicurus,335,71.43
156,Whinchat,Saxicola rubetra,302,64.39
157,Stonechat,Saxicola rubicola,432,92.11
158,Wheatear,Oenanthe oenanthe,409,87.21
159,Tree Sparrow,Passer montanus,328,69.94
160,House Sparrow,Passer domesticus,458,97.65
161,Dunnock,Prunella modularis,462,98.51
162,Yellow Wagtail,Motacilla flava,368,78.46
163,Grey Wagtail,Motacilla cinerea,440,93.82
164,Pied Wagtail,Motacilla alba,460,98.08
165,Tawny Pipit,Anthus campestris,14,2.99
166,Meadow Pipit,Anthus pratensis,434,92.54
167,Tree Pipit,Anthus trivialis,307,65.46
168,Rock Pipit,Anthus petrosus,372,79.32
169,Chaffinch,Fringilla coelebs,457,97.44
170,Bullfinch,Pyrrhula pyrrhula,429,91.47
171,Greenfinch,Chloris chloris,453,96.59
172,Linnet,Linaria cannabina,437,93.18
173,Lesser Redpoll,Acanthis cabaret,341,72.71
174,Goldfinch,Carduelis carduelis,454,96.80
175,Siskin,Spinus spinus,414,88.27
176,Cirl Bunting,Emberiza cirlus,103,21.96
177,Little Bunting,Emberiza pusilla,110,23.45
178,Rustic Bunting,Emberiza rustica,54,11.51
179,Reed Bunting,Emberiza schoeniclus,439,93.60
180,White-throated Sparrow,Zonotrichia albicollis,63,13.43