Neil Glenn: Cornwall Mainland Life List BOU, All records: Top Blockers Record(s) 1 to 123 of 123 total.
Seq.	Species	Scientific Name	Seen By Other Listers	Other Listers (%)	
1	Mute Swan	Cygnus olor	21	80.77	
2	Shelduck	Tadorna tadorna	20	76.92	
3	Shoveler	Spatula clypeata	21	80.77	
4	Gadwall	Mareca strepera	20	76.92	
5	Wigeon	Mareca penelope	21	80.77	
6	American Wigeon	Mareca americana	14	53.85	
7	Mallard	Anas platyrhynchos	22	84.62	
8	Black Duck	Anas rubripes	12	46.15	
9	Teal	Anas crecca	21	80.77	
10	Pochard	Aythya ferina	20	76.92	
11	Tufted Duck	Aythya fuligula	21	80.77	
12	Scaup	Aythya marila	19	73.08	
13	Lesser Scaup	Aythya affinis	17	65.38	
14	King Eider	Somateria spectabilis	13	50.00	
15	Eider	Somateria mollissima	20	76.92	
16	Surf Scoter	Melanitta perspicillata	15	57.69	
17	Common Scoter	Melanitta nigra	21	80.77	
18	Long-tailed Duck	Clangula hyemalis	18	69.23	
19	Alpine Swift	Tachymarptis melba	14	53.85	
20	Swift	Apus apus	22	84.62	
21	Woodpigeon	Columba palumbus	23	88.46	
22	Collared Dove	Streptopelia decaocto	22	84.62	
23	Water Rail	Rallus aquaticus	22	84.62	
24	Moorhen	Gallinula chloropus	21	80.77	
25	Little Grebe	Tachybaptus ruficollis	21	80.77	
26	Oystercatcher	Haematopus ostralegus	23	88.46	
27	Golden Plover	Pluvialis apricaria	22	84.62	
28	Pacific Golden Plover	Pluvialis fulva	11	42.31	
29	Ringed Plover	Charadrius hiaticula	21	80.77	
30	Eurasian Whimbrel	Numenius phaeopus	22	84.62	
31	Curlew	Numenius arquata	22	84.62	
32	Bar-tailed Godwit	Limosa lapponica	21	80.77	
33	Common Sandpiper	Actitis hypoleucos	21	80.77	
34	Green Sandpiper	Tringa ochropus	19	73.08	
35	Redshank	Tringa totanus	21	80.77	
36	Lesser Yellowlegs	Tringa flavipes	17	65.38	
37	Greenshank	Tringa nebularia	21	80.77	
38	Turnstone	Arenaria interpres	21	80.77	
39	Sanderling	Calidris alba	21	80.77	
40	Dunlin	Calidris alpina	21	80.77	
41	Purple Sandpiper	Calidris maritima	20	76.92	
42	Common Tern	Sterna hirundo	19	73.08	
43	Sandwich Tern	Thalasseus sandvicensis	21	80.77	
44	Bonaparte's Gull	Chroicocephalus philadelphia	17	65.38	
45	Black-headed Gull	Chroicocephalus ridibundus	22	84.62	
46	Herring Gull	Larus argentatus	24	92.31	
47	Great Black-backed Gull	Larus marinus	22	84.62	
48	Lesser Black-backed Gull	Larus fuscus	22	84.62	
49	Iceland Gull	Larus glaucoides	17	65.38	
50	Arctic Skua	Stercorarius parasiticus	20	76.92	
51	Great Skua	Stercorarius skua	21	80.77	
52	Common Guillemot	Uria aalge	21	80.77	
53	Red-throated Diver	Gavia stellata	20	76.92	
54	Black-throated Diver	Gavia arctica	19	73.08	
55	Great Northern Diver	Gavia immer	20	76.92	
56	Storm Petrel	Hydrobates pelagicus	20	76.92	
57	Fulmar	Fulmarus glacialis	22	84.62	
58	Sooty Shearwater	Ardenna grisea	20	76.92	
59	Manx Shearwater	Puffinus puffinus	21	80.77	
60	Balearic Shearwater	Puffinus mauretanicus	21	80.77	
61	Gannet	Morus bassanus	21	80.77	
62	Brown Booby	Sula leucogaster	13	50.00	
63	Cormorant	Phalacrocorax carbo	22	84.62	
64	Shag	Gulosus aristotelis	21	80.77	
65	Spoonbill	Platalea leucorodia	20	76.92	
66	Night-heron	Nycticorax nycticorax	12	46.15	
67	Little Egret	Egretta garzetta	21	80.77	
68	Grey Heron	Ardea cinerea	22	84.62	
69	Sparrowhawk	Accipiter nisus	23	88.46	
70	Buzzard	Buteo buteo	23	88.46	
71	Scops Owl	Otus scops	7	26.92	
72	Hoopoe	Upupa epops	16	61.54	
73	Great Spotted Woodpecker	Dendrocopos major	21	80.77	
74	Kestrel	Falco tinnunculus	22	84.62	
75	Gyr Falcon	Falco rusticolus	12	46.15	
76	Peregrine	Falco peregrinus	22	84.62	
77	Alder Flycatcher	Empidonax alnorum	9	34.62	
78	Woodchat Shrike	Lanius senator	17	65.38	
79	Red-backed Shrike	Lanius collurio	13	50.00	
80	Jay	Garrulus glandarius	21	80.77	
81	Magpie	Pica pica	23	88.46	
82	Chough	Pyrrhocorax pyrrhocorax	22	84.62	
83	Jackdaw	Coloeus monedula	23	88.46	
84	Rook	Corvus frugilegus	22	84.62	
85	Carrion Crow	Corvus corone	23	88.46	
86	Raven	Corvus corax	22	84.62	
87	Coal Tit	Periparus ater	21	80.77	
88	Blue Tit	Cyanistes caeruleus	23	88.46	
89	Great Tit	Parus major	22	84.62	
90	Skylark	Alauda arvensis	21	80.77	
91	Swallow	Hirundo rustica	22	84.62	
92	House Martin	Delichon urbicum	23	88.46	
93	Cetti's Warbler	Cettia cetti	18	69.23	
94	Long-tailed Tit	Aegithalos caudatus	23	88.46	
95	Yellow-browed Warbler	Phylloscopus inornatus	21	80.77	
96	Willow Warbler	Phylloscopus trochilus	22	84.62	
97	Chiffchaff	Phylloscopus collybita	22	84.62	
98	Blackcap	Sylvia atricapilla	23	88.46	
99	Firecrest	Regulus ignicapilla	21	80.77	
100	Goldcrest	Regulus regulus	23	88.46	
101	Wren	Troglodytes troglodytes	22	84.62	
102	Nuthatch	Sitta europaea	19	73.08	
103	Rose-coloured Starling	Pastor roseus	18	69.23	
104	Starling	Sturnus vulgaris	22	84.62	
105	Song Thrush	Turdus philomelos	21	80.77	
106	Mistle Thrush	Turdus viscivorus	21	80.77	
107	Blackbird	Turdus merula	22	84.62	
108	Robin	Erithacus rubecula	23	88.46	
109	Red-flanked Bluetail	Tarsiger cyanurus	7	26.92	
110	Stonechat	Saxicola rubicola	22	84.62	
111	Wheatear	Oenanthe oenanthe	21	80.77	
112	Dipper	Cinclus cinclus	20	76.92	
113	House Sparrow	Passer domesticus	22	84.62	
114	Dunnock	Prunella modularis	23	88.46	
115	Grey Wagtail	Motacilla cinerea	22	84.62	
116	Pied Wagtail	Motacilla alba	22	84.62	
117	Meadow Pipit	Anthus pratensis	22	84.62	
118	Rock Pipit	Anthus petrosus	21	80.77	
119	Chaffinch	Fringilla coelebs	22	84.62	
120	Greenfinch	Chloris chloris	22	84.62	
121	Linnet	Linaria cannabina	22	84.62	
122	Goldfinch	Carduelis carduelis	22	84.62	
123	Serin	Serinus serinus	13	50.00