Ian Hughes: Britain Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 201 of 201 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,Mute Swan,Cygnus olor,461,98.29
7,Whooper Swan,Cygnus cygnus,310,66.10
8,Egyptian Goose,Alopochen aegyptiaca,370,78.89
9,Shelduck,Tadorna tadorna,441,94.03
10,Mandarin Duck,Aix galericulata,310,66.10
11,Garganey,Spatula querquedula,282,60.13
12,Shoveler,Spatula clypeata,444,94.67
13,Gadwall,Mareca strepera,442,94.24
14,Wigeon,Mareca penelope,442,94.24
15,Mallard,Anas platyrhynchos,461,98.29
16,Pintail,Anas acuta,390,83.16
17,Teal,Anas crecca,445,94.88
18,Pochard,Aythya ferina,426,90.83
19,Tufted Duck,Aythya fuligula,457,97.44
20,Scaup,Aythya marila,244,52.03
21,Eider,Somateria mollissima,333,71.00
22,Common Scoter,Melanitta nigra,347,73.99
23,Long-tailed Duck,Clangula hyemalis,205,43.71
24,Goldeneye,Bucephala clangula,383,81.66
25,Smew,Mergellus albellus,159,33.90
26,Goosander,Mergus merganser,390,83.16
27,Red-breasted Merganser,Mergus serrator,324,69.08
28,Red Grouse,Lagopus lagopus,209,44.56
29,Black Grouse,Lyrurus tetrix,102,21.75
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,Rock Dove (Feral Pigeon),Columba livia,403,85.93
36,Stock Dove,Columba oenas,416,88.70
37,Woodpigeon,Columba palumbus,463,98.72
38,Collared Dove,Streptopelia decaocto,453,96.59
39,Water Rail,Rallus aquaticus,353,75.27
40,Moorhen,Gallinula chloropus,458,97.65
41,Coot,Fulica atra,456,97.23
42,Crane,Grus grus,199,42.43
43,Little Grebe,Tachybaptus ruficollis,443,94.46
44,Great Crested Grebe,Podiceps cristatus,447,95.31
45,Slavonian Grebe,Podiceps auritus,235,50.11
46,Black-necked Grebe,Podiceps nigricollis,255,54.37
47,Oystercatcher,Haematopus ostralegus,448,95.52
48,Avocet,Recurvirostra avosetta,394,84.01
49,Grey Plover,Pluvialis squatarola,343,73.13
50,Golden Plover,Pluvialis apricaria,389,82.94
51,American Golden Plover,Pluvialis dominica,73,15.57
52,Ringed Plover,Charadrius hiaticula,399,85.07
53,Little Ringed Plover,Charadrius dubius,360,76.76
54,Lapwing,Vanellus vanellus,453,96.59
55,Eurasian Whimbrel,Numenius phaeopus,349,74.41
56,Curlew,Numenius arquata,436,92.96
57,Bar-tailed Godwit,Limosa lapponica,368,78.46
58,Black-tailed Godwit,Limosa limosa,411,87.63
59,Long-billed Dowitcher,Limnodromus scolopaceus,42,8.96
60,Jack Snipe,Lymnocryptes minimus,232,49.47
61,Woodcock,Scolopax rusticola,291,62.05
62,Snipe,Gallinago gallinago,413,88.06
63,Wilson's Phalarope,Phalaropus tricolor,42,8.96
64,Common Sandpiper,Actitis hypoleucos,397,84.65
65,Green Sandpiper,Tringa ochropus,351,74.84
66,Wood Sandpiper,Tringa glareola,270,57.57
67,Redshank,Tringa totanus,434,92.54
68,Spotted Redshank,Tringa erythropus,331,70.58
69,Greenshank,Tringa nebularia,382,81.45
70,Turnstone,Arenaria interpres,411,87.63
71,Knot,Calidris canutus,349,74.41
72,Ruff,Calidris pugnax,369,78.68
73,Curlew Sandpiper,Calidris ferruginea,260,55.44
74,Sanderling,Calidris alba,369,78.68
75,Dunlin,Calidris alpina,418,89.13
76,Purple Sandpiper,Calidris maritima,265,56.50
77,Little Stint,Calidris minuta,290,61.83
78,Little Tern,Sternula albifrons,286,60.98
79,Arctic Tern,Sterna paradisaea,290,61.83
80,Common Tern,Sterna hirundo,407,86.78
81,Sandwich Tern,Thalasseus sandvicensis,372,79.32
82,Little Gull,Hydrocoloeus minutus,281,59.91
83,Kittiwake,Rissa tridactyla,382,81.45
84,Black-headed Gull,Chroicocephalus ridibundus,460,98.08
85,Mediterranean Gull,Ichthyaetus melanocephalus,366,78.04
86,Common Gull,Larus canus,418,89.13
87,Herring Gull,Larus argentatus,457,97.44
88,Yellow-legged Gull,Larus michahellis,226,48.19
89,Great Black-backed Gull,Larus marinus,433,92.32
90,Lesser Black-backed Gull,Larus fuscus,448,95.52
91,Puffin,Fratercula arctica,305,65.03
92,Black Guillemot,Cepphus grylle,206,43.92
93,Razorbill,Alca torda,377,80.38
94,Common Guillemot,Uria aalge,387,82.52
95,Red-throated Diver,Gavia stellata,330,70.36
96,Great Northern Diver,Gavia immer,287,61.19
97,Fulmar,Fulmarus glacialis,389,82.94
98,Manx Shearwater,Puffinus puffinus,246,52.45
99,Gannet,Morus bassanus,405,86.35
100,Cormorant,Phalacrocorax carbo,457,97.44
101,Shag,Gulosus aristotelis,370,78.89
102,Glossy Ibis,Plegadis falcinellus,213,45.42
103,Spoonbill,Platalea leucorodia,335,71.43
104,Bittern,Botaurus stellaris,294,62.69
105,Little Egret,Egretta garzetta,444,94.67
106,Squacco Heron,Ardeola ralloides,15,3.20
107,Cattle Egret,Bubulcus ibis,300,63.97
108,Great White Egret,Ardea alba,387,82.52
109,Grey Heron,Ardea cinerea,454,96.80
110,Osprey,Pandion haliaetus,294,62.69
111,Golden Eagle,Aquila chrysaetos,81,17.27
112,Sparrowhawk,Accipiter nisus,443,94.46
113,Marsh Harrier,Circus aeruginosus,406,86.57
114,Hen Harrier,Circus cyaneus,227,48.40
115,Red Kite,Milvus milvus,434,92.54
116,White-tailed Eagle,Haliaeetus albicilla,114,24.31
117,Buzzard,Buteo buteo,457,97.44
118,Barn Owl,Tyto alba,371,79.10
119,Little Owl,Athene noctua,281,59.91
120,Short-eared Owl,Asio flammeus,262,55.86
121,Tawny Owl,Strix aluco,364,77.61
122,Hoopoe,Upupa epops,92,19.62
123,Kingfisher,Alcedo atthis,410,87.42
124,Great Spotted Woodpecker,Dendrocopos major,443,94.46
125,Green Woodpecker,Picus viridis,395,84.22
126,Kestrel,Falco tinnunculus,453,96.59
127,Merlin,Falco columbarius,275,58.64
128,Hobby,Falco subbuteo,347,73.99
129,Peregrine,Falco peregrinus,421,89.77
130,Ring-necked Parakeet,Psittacula krameri,290,61.83
131,Red-backed Shrike,Lanius collurio,122,26.01
132,Jay,Garrulus glandarius,447,95.31
133,Magpie,Pica pica,460,98.08
134,Chough,Pyrrhocorax pyrrhocorax,194,41.36
135,Jackdaw,Coloeus monedula,459,97.87
136,Rook,Corvus frugilegus,453,96.59
137,Carrion Crow,Corvus corone,460,98.08
138,Hooded Crow,Corvus cornix,193,41.15
139,Raven,Corvus corax,415,88.49
140,Coal Tit,Periparus ater,446,95.10
141,Marsh Tit,Poecile palustris,318,67.80
142,Willow Tit,Poecile montanus,179,38.17
143,Blue Tit,Cyanistes caeruleus,463,98.72
144,Great Tit,Parus major,461,98.29
145,Skylark,Alauda arvensis,440,93.82
146,Sand Martin,Riparia riparia,426,90.83
147,Swallow,Hirundo rustica,437,93.18
148,House Martin,Delichon urbicum,432,92.11
149,Cetti's Warbler,Cettia cetti,387,82.52
150,Long-tailed Tit,Aegithalos caudatus,453,96.59
151,Willow Warbler,Phylloscopus trochilus,415,88.49
152,Chiffchaff,Phylloscopus collybita,441,94.03
153,Sedge Warbler,Acrocephalus schoenobaenus,413,88.06
154,Reed Warbler,Acrocephalus scirpaceus,399,85.07
155,Grasshopper Warbler,Locustella naevia,264,56.29
156,Blackcap,Sylvia atricapilla,437,93.18
157,Garden Warbler,Sylvia borin,343,73.13
158,Lesser Whitethroat,Curruca curruca,332,70.79
159,Whitethroat,Curruca communis,421,89.77
160,Goldcrest,Regulus regulus,427,91.04
161,Wren,Troglodytes troglodytes,458,97.65
162,Nuthatch,Sitta europaea,431,91.90
163,Treecreeper,Certhia familiaris,420,89.55
164,Starling,Sturnus vulgaris,458,97.65
165,Song Thrush,Turdus philomelos,454,96.80
166,Mistle Thrush,Turdus viscivorus,437,93.18
167,Redwing,Turdus iliacus,443,94.46
168,Blackbird,Turdus merula,462,98.51
169,Fieldfare,Turdus pilaris,422,89.98
170,Ring Ouzel,Turdus torquatus,261,55.65
171,Spotted Flycatcher,Muscicapa striata,330,70.36
172,Robin,Erithacus rubecula,462,98.51
173,Pied Flycatcher,Ficedula hypoleuca,286,60.98
174,Redstart,Phoenicurus phoenicurus,335,71.43
175,Whinchat,Saxicola rubetra,302,64.39
176,Stonechat,Saxicola rubicola,432,92.11
177,Wheatear,Oenanthe oenanthe,409,87.21
178,Dipper,Cinclus cinclus,289,61.62
179,Tree Sparrow,Passer montanus,328,69.94
180,House Sparrow,Passer domesticus,458,97.65
181,Dunnock,Prunella modularis,462,98.51
182,Yellow Wagtail,Motacilla flava,368,78.46
183,Grey Wagtail,Motacilla cinerea,440,93.82
184,Pied Wagtail,Motacilla alba,460,98.08
185,Meadow Pipit,Anthus pratensis,434,92.54
186,Tree Pipit,Anthus trivialis,307,65.46
187,Rock Pipit,Anthus petrosus,372,79.32
188,Chaffinch,Fringilla coelebs,457,97.44
189,Brambling,Fringilla montifringilla,310,66.10
190,Bullfinch,Pyrrhula pyrrhula,429,91.47
191,Greenfinch,Chloris chloris,453,96.59
192,Twite,Linaria flavirostris,178,37.95
193,Linnet,Linaria cannabina,437,93.18
194,Lesser Redpoll,Acanthis cabaret,341,72.71
195,Common Crossbill,Loxia curvirostra,263,56.08
196,Goldfinch,Carduelis carduelis,454,96.80
197,Siskin,Spinus spinus,414,88.27
198,Snow Bunting,Plectrophenax nivalis,254,54.16
199,Corn Bunting,Emberiza calandra,289,61.62
200,Yellowhammer,Emberiza citrinella,407,86.78
201,Reed Bunting,Emberiza schoeniclus,439,93.60