Clive Joseph: Britain Life List BOU, All records: Top Blockers Record(s) 1 to 125 of 125 total.
Seq.	Species	Scientific Name	Seen By Other Listers	Other Listers (%)	
1	Brent Goose	Branta bernicla	1960	83.51	
2	Canada Goose	Branta canadensis	2158	91.95	
3	Barnacle Goose	Branta leucopsis	1950	83.08	
4	Greylag Goose	Anser anser	2111	89.94	
5	Mute Swan	Cygnus olor	2177	92.76	
6	Egyptian Goose	Alopochen aegyptiaca	1946	82.91	
7	Shelduck	Tadorna tadorna	2105	89.69	
8	Garganey	Spatula querquedula	1800	76.69	
9	Shoveler	Spatula clypeata	2073	88.33	
10	Gadwall	Mareca strepera	2051	87.39	
11	Wigeon	Mareca penelope	2086	88.88	
12	Mallard	Anas platyrhynchos	2148	91.52	
13	Teal	Anas crecca	2093	89.18	
14	Tufted Duck	Aythya fuligula	2100	89.48	
15	Eider	Somateria mollissima	1892	80.61	
16	Common Scoter	Melanitta nigra	1826	77.80	
17	Goosander	Mergus merganser	1966	83.77	
18	Pheasant	Phasianus colchicus	2120	90.33	
19	Red-legged Partridge	Alectoris rufa	1957	83.38	
20	Swift	Apus apus	2040	86.92	
21	Cuckoo	Cuculus canorus	1916	81.64	
22	Stock Dove	Columba oenas	1953	83.21	
23	Woodpigeon	Columba palumbus	2101	89.52	
24	Collared Dove	Streptopelia decaocto	2068	88.11	
25	Moorhen	Gallinula chloropus	2108	89.82	
26	Coot	Fulica atra	2104	89.65	
27	Crane	Grus grus	1621	69.07	
28	Little Grebe	Tachybaptus ruficollis	2051	87.39	
29	Great Crested Grebe	Podiceps cristatus	2076	88.45	
30	Oystercatcher	Haematopus ostralegus	2075	88.41	
31	Avocet	Recurvirostra avosetta	1969	83.89	
32	Golden Plover	Pluvialis apricaria	1926	82.06	
33	Ringed Plover	Charadrius hiaticula	1974	84.11	
34	Little Ringed Plover	Charadrius dubius	1862	79.34	
35	Lapwing	Vanellus vanellus	2078	88.54	
36	Eurasian Whimbrel	Numenius phaeopus	1830	77.97	
37	Curlew	Numenius arquata	2044	87.09	
38	Bar-tailed Godwit	Limosa lapponica	1879	80.06	
39	Black-tailed Godwit	Limosa limosa	1978	84.28	
40	Snipe	Gallinago gallinago	1997	85.09	
41	Common Sandpiper	Actitis hypoleucos	1911	81.42	
42	Green Sandpiper	Tringa ochropus	1820	77.55	
43	Wood Sandpiper	Tringa glareola	1645	70.09	
44	Redshank	Tringa totanus	2040	86.92	
45	Greenshank	Tringa nebularia	1895	80.74	
46	Turnstone	Arenaria interpres	1961	83.55	
47	Knot	Calidris canutus	1856	79.08	
48	Ruff	Calidris pugnax	1887	80.40	
49	Curlew Sandpiper	Calidris ferruginea	1690	72.01	
50	Dunlin	Calidris alpina	1985	84.58	
51	Little Stint	Calidris minuta	1701	72.48	
52	Common Tern	Sterna hirundo	1967	83.81	
53	Sandwich Tern	Thalasseus sandvicensis	1864	79.42	
54	Little Gull	Hydrocoloeus minutus	1724	73.46	
55	Kittiwake	Rissa tridactyla	1899	80.91	
56	Black-headed Gull	Chroicocephalus ridibundus	2069	88.16	
57	Mediterranean Gull	Ichthyaetus melanocephalus	1833	78.10	
58	Common Gull	Larus canus	1986	84.62	
59	Herring Gull	Larus argentatus	2077	88.50	
60	Great Black-backed Gull	Larus marinus	1995	85.00	
61	Lesser Black-backed Gull	Larus fuscus	2014	85.81	
62	Arctic Skua	Stercorarius parasiticus	1597	68.04	
63	Gannet	Morus bassanus	1980	84.36	
64	Cormorant	Phalacrocorax carbo	2101	89.52	
65	Glossy Ibis	Plegadis falcinellus	1574	67.06	
66	Spoonbill	Platalea leucorodia	1820	77.55	
67	Bittern	Botaurus stellaris	1825	77.76	
68	Little Egret	Egretta garzetta	2063	87.90	
69	Great White Egret	Ardea alba	1809	77.08	
70	Grey Heron	Ardea cinerea	2095	89.26	
71	Osprey	Pandion haliaetus	1875	79.89	
72	Sparrowhawk	Accipiter nisus	2040	86.92	
73	Marsh Harrier	Circus aeruginosus	1977	84.24	
74	Red Kite	Milvus milvus	2030	86.49	
75	Buzzard	Buteo buteo	2085	88.84	
76	Kingfisher	Alcedo atthis	2032	86.58	
77	Great Spotted Woodpecker	Dendrocopos major	2044	87.09	
78	Green Woodpecker	Picus viridis	1979	84.32	
79	Kestrel	Falco tinnunculus	2077	88.50	
80	Hobby	Falco subbuteo	1856	79.08	
81	Peregrine	Falco peregrinus	2007	85.51	
82	Red-backed Shrike	Lanius collurio	1439	61.31	
83	Jay	Garrulus glandarius	2048	87.26	
84	Magpie	Pica pica	2089	89.01	
85	Jackdaw	Coloeus monedula	2069	88.16	
86	Rook	Corvus frugilegus	2039	86.88	
87	Carrion Crow	Corvus corone	2079	88.58	
88	Coal Tit	Periparus ater	2038	86.83	
89	Blue Tit	Cyanistes caeruleus	2099	89.43	
90	Great Tit	Parus major	2088	88.96	
91	Skylark	Alauda arvensis	2000	85.22	
92	Sand Martin	Riparia riparia	1972	84.02	
93	Swallow	Hirundo rustica	2032	86.58	
94	House Martin	Delichon urbicum	2008	85.56	
95	Cetti's Warbler	Cettia cetti	1800	76.69	
96	Long-tailed Tit	Aegithalos caudatus	2065	87.98	
97	Wood Warbler	Phylloscopus sibilatrix	1587	67.62	
98	Willow Warbler	Phylloscopus trochilus	1921	81.85	
99	Chiffchaff	Phylloscopus collybita	2016	85.90	
100	Sedge Warbler	Acrocephalus schoenobaenus	1903	81.08	
101	Blackcap	Sylvia atricapilla	2000	85.22	
102	Whitethroat	Curruca communis	1942	82.74	
103	Wren	Troglodytes troglodytes	2060	87.77	
104	Nuthatch	Sitta europaea	2017	85.94	
105	Treecreeper	Certhia familiaris	1998	85.13	
106	Starling	Sturnus vulgaris	2083	88.75	
107	Blackbird	Turdus merula	2087	88.92	
108	Robin	Erithacus rubecula	2095	89.26	
109	Nightingale	Luscinia megarhynchos	1475	62.85	
110	Redstart	Phoenicurus phoenicurus	1801	76.74	
111	Whinchat	Saxicola rubetra	1785	76.05	
112	Stonechat	Saxicola rubicola	1979	84.32	
113	Wheatear	Oenanthe oenanthe	1942	82.74	
114	Tree Sparrow	Passer montanus	1869	79.63	
115	House Sparrow	Passer domesticus	2068	88.11	
116	Dunnock	Prunella modularis	2062	87.86	
117	Yellow Wagtail	Motacilla flava	1818	77.46	
118	Grey Wagtail	Motacilla cinerea	1996	85.04	
119	Pied Wagtail	Motacilla alba	2065	87.98	
120	Meadow Pipit	Anthus pratensis	1974	84.11	
121	Chaffinch	Fringilla coelebs	2070	88.20	
122	Greenfinch	Chloris chloris	2053	87.47	
123	Linnet	Linaria cannabina	1987	84.66	
124	Goldfinch	Carduelis carduelis	2079	88.58	
125	Reed Bunting	Emberiza schoeniclus	1986	84.62