Charles Farrell: Greater Manchester Year List 2021 BOU, All records: Top Blockers Record(s) 1 to 100 of 100 total.
Seq.	Species	Scientific Name	Seen By Other Listers	Other Listers (%)	
1	Canada Goose	Branta canadensis	1	100.00	
2	Greylag Goose	Anser anser	1	100.00	
3	Pink-footed Goose	Anser brachyrhynchus	1	100.00	
4	Mute Swan	Cygnus olor	1	100.00	
5	Shoveler	Spatula clypeata	1	100.00	
6	Gadwall	Mareca strepera	1	100.00	
7	Wigeon	Mareca penelope	1	100.00	
8	Mallard	Anas platyrhynchos	1	100.00	
9	Teal	Anas crecca	1	100.00	
10	Pochard	Aythya ferina	1	100.00	
11	Ring-necked Duck	Aythya collaris	1	100.00	
12	Tufted Duck	Aythya fuligula	1	100.00	
13	Scaup	Aythya marila	1	100.00	
14	Goldeneye	Bucephala clangula	1	100.00	
15	Goosander	Mergus merganser	1	100.00	
16	Red-breasted Merganser	Mergus serrator	1	100.00	
17	Pheasant	Phasianus colchicus	1	100.00	
18	Swift	Apus apus	1	100.00	
19	Rock Dove (Feral Pigeon)	Columba livia	1	100.00	
20	Stock Dove	Columba oenas	1	100.00	
21	Woodpigeon	Columba palumbus	1	100.00	
22	Collared Dove	Streptopelia decaocto	1	100.00	
23	Moorhen	Gallinula chloropus	1	100.00	
24	Coot	Fulica atra	1	100.00	
25	Little Grebe	Tachybaptus ruficollis	1	100.00	
26	Great Crested Grebe	Podiceps cristatus	1	100.00	
27	Oystercatcher	Haematopus ostralegus	1	100.00	
28	Lapwing	Vanellus vanellus	1	100.00	
29	Curlew	Numenius arquata	1	100.00	
30	Snipe	Gallinago gallinago	1	100.00	
31	Common Sandpiper	Actitis hypoleucos	1	100.00	
32	Black-headed Gull	Chroicocephalus ridibundus	1	100.00	
33	Common Gull	Larus canus	1	100.00	
34	Herring Gull	Larus argentatus	1	100.00	
35	Great Black-backed Gull	Larus marinus	1	100.00	
36	Lesser Black-backed Gull	Larus fuscus	1	100.00	
37	Red-throated Diver	Gavia stellata	1	100.00	
38	Cormorant	Phalacrocorax carbo	1	100.00	
39	Little Egret	Egretta garzetta	1	100.00	
40	Grey Heron	Ardea cinerea	1	100.00	
41	Sparrowhawk	Accipiter nisus	1	100.00	
42	Buzzard	Buteo buteo	1	100.00	
43	Barn Owl	Tyto alba	1	100.00	
44	Tawny Owl	Strix aluco	1	100.00	
45	Kingfisher	Alcedo atthis	1	100.00	
46	Great Spotted Woodpecker	Dendrocopos major	1	100.00	
47	Green Woodpecker	Picus viridis	1	100.00	
48	Kestrel	Falco tinnunculus	1	100.00	
49	Peregrine	Falco peregrinus	1	100.00	
50	Ring-necked Parakeet	Psittacula krameri	1	100.00	
51	Jay	Garrulus glandarius	1	100.00	
52	Magpie	Pica pica	1	100.00	
53	Jackdaw	Coloeus monedula	1	100.00	
54	Rook	Corvus frugilegus	1	100.00	
55	Carrion Crow	Corvus corone	1	100.00	
56	Raven	Corvus corax	1	100.00	
57	Coal Tit	Periparus ater	1	100.00	
58	Blue Tit	Cyanistes caeruleus	1	100.00	
59	Great Tit	Parus major	1	100.00	
60	Skylark	Alauda arvensis	1	100.00	
61	Sand Martin	Riparia riparia	1	100.00	
62	Swallow	Hirundo rustica	1	100.00	
63	House Martin	Delichon urbicum	1	100.00	
64	Long-tailed Tit	Aegithalos caudatus	1	100.00	
65	Wood Warbler	Phylloscopus sibilatrix	1	100.00	
66	Willow Warbler	Phylloscopus trochilus	1	100.00	
67	Chiffchaff	Phylloscopus collybita	1	100.00	
68	Grasshopper Warbler	Locustella naevia	1	100.00	
69	Blackcap	Sylvia atricapilla	1	100.00	
70	Whitethroat	Curruca communis	1	100.00	
71	Goldcrest	Regulus regulus	1	100.00	
72	Wren	Troglodytes troglodytes	1	100.00	
73	Nuthatch	Sitta europaea	1	100.00	
74	Treecreeper	Certhia familiaris	1	100.00	
75	Starling	Sturnus vulgaris	1	100.00	
76	Song Thrush	Turdus philomelos	1	100.00	
77	Mistle Thrush	Turdus viscivorus	1	100.00	
78	Redwing	Turdus iliacus	1	100.00	
79	Blackbird	Turdus merula	1	100.00	
80	Fieldfare	Turdus pilaris	1	100.00	
81	Ring Ouzel	Turdus torquatus	1	100.00	
82	Spotted Flycatcher	Muscicapa striata	1	100.00	
83	Robin	Erithacus rubecula	1	100.00	
84	Stonechat	Saxicola rubicola	1	100.00	
85	Wheatear	Oenanthe oenanthe	1	100.00	
86	Dipper	Cinclus cinclus	1	100.00	
87	House Sparrow	Passer domesticus	1	100.00	
88	Dunnock	Prunella modularis	1	100.00	
89	Grey Wagtail	Motacilla cinerea	1	100.00	
90	Pied Wagtail	Motacilla alba	1	100.00	
91	Meadow Pipit	Anthus pratensis	1	100.00	
92	Chaffinch	Fringilla coelebs	1	100.00	
93	Brambling	Fringilla montifringilla	1	100.00	
94	Bullfinch	Pyrrhula pyrrhula	1	100.00	
95	Greenfinch	Chloris chloris	1	100.00	
96	Linnet	Linaria cannabina	1	100.00	
97	Lesser Redpoll	Acanthis cabaret	1	100.00	
98	Goldfinch	Carduelis carduelis	1	100.00	
99	Siskin	Spinus spinus	1	100.00	
100	Reed Bunting	Emberiza schoeniclus	1	100.00