John Watts: 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,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,Whooper Swan,Cygnus cygnus,310,66.10
7,Egyptian Goose,Alopochen aegyptiaca,370,78.89
8,Shelduck,Tadorna tadorna,441,94.03
9,Mandarin Duck,Aix galericulata,310,66.10
10,Garganey,Spatula querquedula,282,60.13
11,Shoveler,Spatula clypeata,444,94.67
12,Gadwall,Mareca strepera,442,94.24
13,Wigeon,Mareca penelope,442,94.24
14,Mallard,Anas platyrhynchos,461,98.29
15,Pintail,Anas acuta,390,83.16
16,Teal,Anas crecca,445,94.88
17,Red-crested Pochard,Netta rufina,170,36.25
18,Pochard,Aythya ferina,426,90.83
19,Ring-necked Duck,Aythya collaris,190,40.51
20,Tufted Duck,Aythya fuligula,457,97.44
21,Scaup,Aythya marila,244,52.03
22,Goldeneye,Bucephala clangula,383,81.66
23,Smew,Mergellus albellus,159,33.90
24,Goosander,Mergus merganser,390,83.16
25,Ruddy Duck,Oxyura jamaicensis,35,7.46
26,Red Grouse,Lagopus lagopus,209,44.56
27,Grey Partridge,Perdix perdix,294,62.69
28,Pheasant,Phasianus colchicus,454,96.80
29,Red-legged Partridge,Alectoris rufa,400,85.29
30,Swift,Apus apus,430,91.68
31,Cuckoo,Cuculus canorus,382,81.45
32,Rock Dove (Feral Pigeon),Columba livia,403,85.93
33,Stock Dove,Columba oenas,416,88.70
34,Woodpigeon,Columba palumbus,463,98.72
35,Collared Dove,Streptopelia decaocto,453,96.59
36,Water Rail,Rallus aquaticus,353,75.27
37,Moorhen,Gallinula chloropus,458,97.65
38,Coot,Fulica atra,456,97.23
39,Crane,Grus grus,199,42.43
40,Little Grebe,Tachybaptus ruficollis,443,94.46
41,Great Crested Grebe,Podiceps cristatus,447,95.31
42,Black-necked Grebe,Podiceps nigricollis,255,54.37
43,Oystercatcher,Haematopus ostralegus,448,95.52
44,Avocet,Recurvirostra avosetta,394,84.01
45,Grey Plover,Pluvialis squatarola,343,73.13
46,Golden Plover,Pluvialis apricaria,389,82.94
47,Ringed Plover,Charadrius hiaticula,399,85.07
48,Little Ringed Plover,Charadrius dubius,360,76.76
49,Lapwing,Vanellus vanellus,453,96.59
50,Eurasian Whimbrel,Numenius phaeopus,349,74.41
51,Curlew,Numenius arquata,436,92.96
52,Bar-tailed Godwit,Limosa lapponica,368,78.46
53,Black-tailed Godwit,Limosa limosa,411,87.63
54,Woodcock,Scolopax rusticola,291,62.05
55,Snipe,Gallinago gallinago,413,88.06
56,Grey Phalarope,Phalaropus fulicarius,114,24.31
57,Common Sandpiper,Actitis hypoleucos,397,84.65
58,Green Sandpiper,Tringa ochropus,351,74.84
59,Wood Sandpiper,Tringa glareola,270,57.57
60,Redshank,Tringa totanus,434,92.54
61,Greenshank,Tringa nebularia,382,81.45
62,Turnstone,Arenaria interpres,411,87.63
63,Knot,Calidris canutus,349,74.41
64,Ruff,Calidris pugnax,369,78.68
65,Curlew Sandpiper,Calidris ferruginea,260,55.44
66,Long-toed Stint,Calidris subminuta,128,27.29
67,Sanderling,Calidris alba,369,78.68
68,Dunlin,Calidris alpina,418,89.13
69,Purple Sandpiper,Calidris maritima,265,56.50
70,Little Stint,Calidris minuta,290,61.83
71,Caspian Tern,Hydroprogne caspia,54,11.51
72,Arctic Tern,Sterna paradisaea,290,61.83
73,Common Tern,Sterna hirundo,407,86.78
74,Sandwich Tern,Thalasseus sandvicensis,372,79.32
75,Elegant Tern,Thalasseus elegans,84,17.91
76,Little Gull,Hydrocoloeus minutus,281,59.91
77,Kittiwake,Rissa tridactyla,382,81.45
78,Bonaparte's Gull,Chroicocephalus philadelphia,107,22.81
79,Black-headed Gull,Chroicocephalus ridibundus,460,98.08
80,Mediterranean Gull,Ichthyaetus melanocephalus,366,78.04
81,Common Gull,Larus canus,418,89.13
82,Herring Gull,Larus argentatus,457,97.44
83,Great Black-backed Gull,Larus marinus,433,92.32
84,Lesser Black-backed Gull,Larus fuscus,448,95.52
85,Puffin,Fratercula arctica,305,65.03
86,Black Guillemot,Cepphus grylle,206,43.92
87,Razorbill,Alca torda,377,80.38
88,Common Guillemot,Uria aalge,387,82.52
89,Red-throated Diver,Gavia stellata,330,70.36
90,Great Northern Diver,Gavia immer,287,61.19
91,Fulmar,Fulmarus glacialis,389,82.94
92,Manx Shearwater,Puffinus puffinus,246,52.45
93,Gannet,Morus bassanus,405,86.35
94,Cormorant,Phalacrocorax carbo,457,97.44
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,Goshawk,Accipiter gentilis,195,41.58
103,Marsh Harrier,Circus aeruginosus,406,86.57
104,Red Kite,Milvus milvus,434,92.54
105,Buzzard,Buteo buteo,457,97.44
106,Barn Owl,Tyto alba,371,79.10
107,Short-eared Owl,Asio flammeus,262,55.86
108,Tawny Owl,Strix aluco,364,77.61
109,Hoopoe,Upupa epops,92,19.62
110,Kingfisher,Alcedo atthis,410,87.42
111,Lesser Spotted Woodpecker,Dryobates minor,117,24.95
112,Great Spotted Woodpecker,Dendrocopos major,443,94.46
113,Green Woodpecker,Picus viridis,395,84.22
114,Kestrel,Falco tinnunculus,453,96.59
115,Merlin,Falco columbarius,275,58.64
116,Hobby,Falco subbuteo,347,73.99
117,Peregrine,Falco peregrinus,421,89.77
118,Jay,Garrulus glandarius,447,95.31
119,Magpie,Pica pica,460,98.08
120,Chough,Pyrrhocorax pyrrhocorax,194,41.36
121,Jackdaw,Coloeus monedula,459,97.87
122,Rook,Corvus frugilegus,453,96.59
123,Carrion Crow,Corvus corone,460,98.08
124,Hooded Crow,Corvus cornix,193,41.15
125,Raven,Corvus corax,415,88.49
126,Coal Tit,Periparus ater,446,95.10
127,Blue Tit,Cyanistes caeruleus,463,98.72
128,Great Tit,Parus major,461,98.29
129,Bearded Tit,Panurus biarmicus,299,63.75
130,Skylark,Alauda arvensis,440,93.82
131,Sand Martin,Riparia riparia,426,90.83
132,Swallow,Hirundo rustica,437,93.18
133,House Martin,Delichon urbicum,432,92.11
134,Cetti's Warbler,Cettia cetti,387,82.52
135,Long-tailed Tit,Aegithalos caudatus,453,96.59
136,Willow Warbler,Phylloscopus trochilus,415,88.49
137,Chiffchaff,Phylloscopus collybita,441,94.03
138,Two-barred Greenish Warbler,Phylloscopus plumbeitarsus,69,14.71
139,Sedge Warbler,Acrocephalus schoenobaenus,413,88.06
140,Blyth's Reed Warbler,Acrocephalus dumetorum,43,9.17
141,Reed Warbler,Acrocephalus scirpaceus,399,85.07
142,River Warbler,Locustella fluviatilis,128,27.29
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,Taiga Flycatcher,Ficedula albicilla,47,10.02
162,Pied Flycatcher,Ficedula hypoleuca,286,60.98
163,Red-flanked Bluetail,Tarsiger cyanurus,52,11.09
164,Redstart,Phoenicurus phoenicurus,335,71.43
165,Stonechat,Saxicola rubicola,432,92.11
166,Wheatear,Oenanthe oenanthe,409,87.21
167,Dipper,Cinclus cinclus,289,61.62
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,Linnet,Linaria cannabina,437,93.18
181,Lesser Redpoll,Acanthis cabaret,341,72.71
182,Goldfinch,Carduelis carduelis,454,96.80
183,Siskin,Spinus spinus,414,88.27
184,Snow Bunting,Plectrophenax nivalis,254,54.16
185,Yellowhammer,Emberiza citrinella,407,86.78
186,Reed Bunting,Emberiza schoeniclus,439,93.60