Ian Kendall: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 237 of 237 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,Mandarin Duck,Aix galericulata,310,66.10
13,Garganey,Spatula querquedula,282,60.13
14,Shoveler,Spatula clypeata,444,94.67
15,Gadwall,Mareca strepera,442,94.24
16,Wigeon,Mareca penelope,442,94.24
17,American Wigeon,Mareca americana,68,14.50
18,Mallard,Anas platyrhynchos,461,98.29
19,Pintail,Anas acuta,390,83.16
20,Teal,Anas crecca,445,94.88
21,Pochard,Aythya ferina,426,90.83
22,Ring-necked Duck,Aythya collaris,190,40.51
23,Tufted Duck,Aythya fuligula,457,97.44
24,Scaup,Aythya marila,244,52.03
25,Eider,Somateria mollissima,333,71.00
26,Velvet Scoter,Melanitta fusca,171,36.46
27,Common Scoter,Melanitta nigra,347,73.99
28,Long-tailed Duck,Clangula hyemalis,205,43.71
29,Goldeneye,Bucephala clangula,383,81.66
30,Goosander,Mergus merganser,390,83.16
31,Red-breasted Merganser,Mergus serrator,324,69.08
32,Red Grouse,Lagopus lagopus,209,44.56
33,Grey Partridge,Perdix perdix,294,62.69
34,Pheasant,Phasianus colchicus,454,96.80
35,Red-legged Partridge,Alectoris rufa,400,85.29
36,Nightjar,Caprimulgus europaeus,205,43.71
37,Swift,Apus apus,430,91.68
38,Cuckoo,Cuculus canorus,382,81.45
39,Rock Dove (Feral Pigeon),Columba livia,403,85.93
40,Stock Dove,Columba oenas,416,88.70
41,Woodpigeon,Columba palumbus,463,98.72
42,Turtle Dove,Streptopelia turtur,172,36.67
43,Collared Dove,Streptopelia decaocto,453,96.59
44,Water Rail,Rallus aquaticus,353,75.27
45,Moorhen,Gallinula chloropus,458,97.65
46,Coot,Fulica atra,456,97.23
47,Little Grebe,Tachybaptus ruficollis,443,94.46
48,Red-necked Grebe,Podiceps grisegena,141,30.06
49,Great Crested Grebe,Podiceps cristatus,447,95.31
50,Black-necked Grebe,Podiceps nigricollis,255,54.37
51,Stone-curlew,Burhinus oedicnemus,168,35.82
52,Oystercatcher,Haematopus ostralegus,448,95.52
53,Black-winged Stilt,Himantopus himantopus,82,17.48
54,Avocet,Recurvirostra avosetta,394,84.01
55,Grey Plover,Pluvialis squatarola,343,73.13
56,Golden Plover,Pluvialis apricaria,389,82.94
57,Ringed Plover,Charadrius hiaticula,399,85.07
58,Little Ringed Plover,Charadrius dubius,360,76.76
59,Lapwing,Vanellus vanellus,453,96.59
60,White-tailed Plover,Vanellus leucurus,200,42.64
61,Eurasian Whimbrel,Numenius phaeopus,349,74.41
62,Curlew,Numenius arquata,436,92.96
63,Bar-tailed Godwit,Limosa lapponica,368,78.46
64,Black-tailed Godwit,Limosa limosa,411,87.63
65,Jack Snipe,Lymnocryptes minimus,232,49.47
66,Woodcock,Scolopax rusticola,291,62.05
67,Snipe,Gallinago gallinago,413,88.06
68,Common Sandpiper,Actitis hypoleucos,397,84.65
69,Green Sandpiper,Tringa ochropus,351,74.84
70,Wood Sandpiper,Tringa glareola,270,57.57
71,Redshank,Tringa totanus,434,92.54
72,Spotted Redshank,Tringa erythropus,331,70.58
73,Greenshank,Tringa nebularia,382,81.45
74,Turnstone,Arenaria interpres,411,87.63
75,Knot,Calidris canutus,349,74.41
76,Ruff,Calidris pugnax,369,78.68
77,Curlew Sandpiper,Calidris ferruginea,260,55.44
78,Long-toed Stint,Calidris subminuta,128,27.29
79,Red-necked Stint,Calidris ruficollis,58,12.37
80,Sanderling,Calidris alba,369,78.68
81,Dunlin,Calidris alpina,418,89.13
82,Purple Sandpiper,Calidris maritima,265,56.50
83,Little Stint,Calidris minuta,290,61.83
84,Pectoral Sandpiper,Calidris melanotos,177,37.74
85,Collared Pratincole,Glareola pratincola,60,12.79
86,Little Tern,Sternula albifrons,286,60.98
87,Black Tern,Chlidonias niger,167,35.61
88,Arctic Tern,Sterna paradisaea,290,61.83
89,Common Tern,Sterna hirundo,407,86.78
90,Sandwich Tern,Thalasseus sandvicensis,372,79.32
91,Little Gull,Hydrocoloeus minutus,281,59.91
92,Kittiwake,Rissa tridactyla,382,81.45
93,Bonaparte's Gull,Chroicocephalus philadelphia,107,22.81
94,Black-headed Gull,Chroicocephalus ridibundus,460,98.08
95,Mediterranean Gull,Ichthyaetus melanocephalus,366,78.04
96,Common Gull,Larus canus,418,89.13
97,Caspian Gull,Larus cachinnans,184,39.23
98,Herring Gull,Larus argentatus,457,97.44
99,Yellow-legged Gull,Larus michahellis,226,48.19
100,Great Black-backed Gull,Larus marinus,433,92.32
101,Glaucous Gull,Larus hyperboreus,88,18.76
102,Lesser Black-backed Gull,Larus fuscus,448,95.52
103,American Herring Gull,Larus smithsonianus,51,10.87
104,Iceland Gull,Larus glaucoides,158,33.69
105,Long-tailed Skua,Stercorarius longicaudus,87,18.55
106,Arctic Skua,Stercorarius parasiticus,204,43.50
107,Pomarine Skua,Stercorarius pomarinus,81,17.27
108,Great Skua,Stercorarius skua,216,46.06
109,Puffin,Fratercula arctica,305,65.03
110,Black Guillemot,Cepphus grylle,206,43.92
111,Razorbill,Alca torda,377,80.38
112,Common Guillemot,Uria aalge,387,82.52
113,Red-throated Diver,Gavia stellata,330,70.36
114,Black-throated Diver,Gavia arctica,178,37.95
115,Great Northern Diver,Gavia immer,287,61.19
116,Black-browed Albatross,Thalassarche melanophris,200,42.64
117,Fulmar,Fulmarus glacialis,389,82.94
118,Soft-plumaged Petrel,Pterodroma mollis,4,0.85
119,Sooty Shearwater,Ardenna grisea,126,26.87
120,Manx Shearwater,Puffinus puffinus,246,52.45
121,Balearic Shearwater,Puffinus mauretanicus,94,20.04
122,Gannet,Morus bassanus,405,86.35
123,Cormorant,Phalacrocorax carbo,457,97.44
124,Shag,Gulosus aristotelis,370,78.89
125,Spoonbill,Platalea leucorodia,335,71.43
126,Little Egret,Egretta garzetta,444,94.67
127,Cattle Egret,Bubulcus ibis,300,63.97
128,Great White Egret,Ardea alba,387,82.52
129,Grey Heron,Ardea cinerea,454,96.80
130,Honey-buzzard,Pernis apivorus,83,17.70
131,Sparrowhawk,Accipiter nisus,443,94.46
132,Goshawk,Accipiter gentilis,195,41.58
133,Marsh Harrier,Circus aeruginosus,406,86.57
134,Hen Harrier,Circus cyaneus,227,48.40
135,Red Kite,Milvus milvus,434,92.54
136,Buzzard,Buteo buteo,457,97.44
137,Barn Owl,Tyto alba,371,79.10
138,Little Owl,Athene noctua,281,59.91
139,Short-eared Owl,Asio flammeus,262,55.86
140,Tawny Owl,Strix aluco,364,77.61
141,Roller,Coracias garrulus,113,24.09
142,Kingfisher,Alcedo atthis,410,87.42
143,Belted Kingfisher,Megaceryle alcyon,93,19.83
144,Great Spotted Woodpecker,Dendrocopos major,443,94.46
145,Green Woodpecker,Picus viridis,395,84.22
146,Kestrel,Falco tinnunculus,453,96.59
147,Merlin,Falco columbarius,275,58.64
148,Hobby,Falco subbuteo,347,73.99
149,Peregrine,Falco peregrinus,421,89.77
150,Ring-necked Parakeet,Psittacula krameri,290,61.83
151,Lesser Grey Shrike,Lanius minor,28,5.97
152,Woodchat Shrike,Lanius senator,99,21.11
153,Brown Shrike,Lanius cristatus,15,3.20
154,Jay,Garrulus glandarius,447,95.31
155,Magpie,Pica pica,460,98.08
156,Chough,Pyrrhocorax pyrrhocorax,194,41.36
157,Jackdaw,Coloeus monedula,459,97.87
158,Rook,Corvus frugilegus,453,96.59
159,Carrion Crow,Corvus corone,460,98.08
160,Raven,Corvus corax,415,88.49
161,Coal Tit,Periparus ater,446,95.10
162,Marsh Tit,Poecile palustris,318,67.80
163,Willow Tit,Poecile montanus,179,38.17
164,Blue Tit,Cyanistes caeruleus,463,98.72
165,Great Tit,Parus major,461,98.29
166,Bearded Tit,Panurus biarmicus,299,63.75
167,Woodlark,Lullula arborea,210,44.78
168,Skylark,Alauda arvensis,440,93.82
169,Sand Martin,Riparia riparia,426,90.83
170,Swallow,Hirundo rustica,437,93.18
171,House Martin,Delichon urbicum,432,92.11
172,Cetti's Warbler,Cettia cetti,387,82.52
173,Long-tailed Tit,Aegithalos caudatus,453,96.59
174,Willow Warbler,Phylloscopus trochilus,415,88.49
175,Chiffchaff,Phylloscopus collybita,441,94.03
176,Green Warbler,Phylloscopus nitidus,91,19.40
177,Great Reed Warbler,Acrocephalus arundinaceus,92,19.62
178,Sedge Warbler,Acrocephalus schoenobaenus,413,88.06
179,Reed Warbler,Acrocephalus scirpaceus,399,85.07
180,Marsh Warbler,Acrocephalus palustris,52,11.09
181,River Warbler,Locustella fluviatilis,128,27.29
182,Grasshopper Warbler,Locustella naevia,264,56.29
183,Blackcap,Sylvia atricapilla,437,93.18
184,Garden Warbler,Sylvia borin,343,73.13
185,Lesser Whitethroat,Curruca curruca,332,70.79
186,Whitethroat,Curruca communis,421,89.77
187,Dartford Warbler,Curruca undata,184,39.23
188,Firecrest,Regulus ignicapilla,198,42.22
189,Goldcrest,Regulus regulus,427,91.04
190,Wren,Troglodytes troglodytes,458,97.65
191,Nuthatch,Sitta europaea,431,91.90
192,Treecreeper,Certhia familiaris,420,89.55
193,Northern Mockingbird,Mimus polyglottos,132,28.14
194,Starling,Sturnus vulgaris,458,97.65
195,Song Thrush,Turdus philomelos,454,96.80
196,Mistle Thrush,Turdus viscivorus,437,93.18
197,Redwing,Turdus iliacus,443,94.46
198,Blackbird,Turdus merula,462,98.51
199,Fieldfare,Turdus pilaris,422,89.98
200,Ring Ouzel,Turdus torquatus,261,55.65
201,Spotted Flycatcher,Muscicapa striata,330,70.36
202,Robin,Erithacus rubecula,462,98.51
203,Taiga Flycatcher,Ficedula albicilla,47,10.02
204,Pied Flycatcher,Ficedula hypoleuca,286,60.98
205,Red-flanked Bluetail,Tarsiger cyanurus,52,11.09
206,Redstart,Phoenicurus phoenicurus,335,71.43
207,Whinchat,Saxicola rubetra,302,64.39
208,Stonechat,Saxicola rubicola,432,92.11
209,Wheatear,Oenanthe oenanthe,409,87.21
210,Pied Wheatear,Oenanthe pleschanka,21,4.48
211,Dipper,Cinclus cinclus,289,61.62
212,Tree Sparrow,Passer montanus,328,69.94
213,House Sparrow,Passer domesticus,458,97.65
214,Dunnock,Prunella modularis,462,98.51
215,Yellow Wagtail,Motacilla flava,368,78.46
216,Grey Wagtail,Motacilla cinerea,440,93.82
217,Pied Wagtail,Motacilla alba,460,98.08
218,Meadow Pipit,Anthus pratensis,434,92.54
219,Tree Pipit,Anthus trivialis,307,65.46
220,Rock Pipit,Anthus petrosus,372,79.32
221,Chaffinch,Fringilla coelebs,457,97.44
222,Brambling,Fringilla montifringilla,310,66.10
223,Bullfinch,Pyrrhula pyrrhula,429,91.47
224,Greenfinch,Chloris chloris,453,96.59
225,Twite,Linaria flavirostris,178,37.95
226,Linnet,Linaria cannabina,437,93.18
227,Lesser Redpoll,Acanthis cabaret,341,72.71
228,Common Crossbill,Loxia curvirostra,263,56.08
229,Goldfinch,Carduelis carduelis,454,96.80
230,Serin,Serinus serinus,27,5.76
231,Siskin,Spinus spinus,414,88.27
232,Lapland Bunting,Calcarius lapponicus,78,16.63
233,Snow Bunting,Plectrophenax nivalis,254,54.16
234,Corn Bunting,Emberiza calandra,289,61.62
235,Yellowhammer,Emberiza citrinella,407,86.78
236,Reed Bunting,Emberiza schoeniclus,439,93.60
237,White-throated Sparrow,Zonotrichia albicollis,63,13.43