Romney Yeoman Walker: Britain Year List 2020 BOU, All records: Top Blockers Record(s) 1 to 114 of 114 total.
Seq.	Species	Scientific Name	Seen By Other Listers	Other Listers (%)	
1	Brent Goose	Branta bernicla	317	77.13	
2	Canada Goose	Branta canadensis	397	96.59	
3	Barnacle Goose	Branta leucopsis	273	66.42	
4	Greylag Goose	Anser anser	390	94.89	
5	Pink-footed Goose	Anser brachyrhynchus	312	75.91	
6	Mute Swan	Cygnus olor	399	97.08	
7	Bewick's Swan	Cygnus columbianus	176	42.82	
8	Whooper Swan	Cygnus cygnus	294	71.53	
9	Shelduck	Tadorna tadorna	382	92.94	
10	Shoveler	Spatula clypeata	379	92.21	
11	Gadwall	Mareca strepera	381	92.70	
12	Wigeon	Mareca penelope	387	94.16	
13	Mallard	Anas platyrhynchos	401	97.57	
14	Pintail	Anas acuta	340	82.73	
15	Teal	Anas crecca	386	93.92	
16	Pochard	Aythya ferina	365	88.81	
17	Tufted Duck	Aythya fuligula	395	96.11	
18	Goldeneye	Bucephala clangula	345	83.94	
19	Goosander	Mergus merganser	348	84.67	
20	Pheasant	Phasianus colchicus	393	95.62	
21	Red-legged Partridge	Alectoris rufa	322	78.35	
22	Swift	Apus apus	352	85.64	
23	Rock Dove (Feral Pigeon)	Columba livia	307	74.70	
24	Stock Dove	Columba oenas	362	88.08	
25	Woodpigeon	Columba palumbus	402	97.81	
26	Collared Dove	Streptopelia decaocto	391	95.13	
27	Moorhen	Gallinula chloropus	397	96.59	
28	Coot	Fulica atra	396	96.35	
29	Little Grebe	Tachybaptus ruficollis	377	91.73	
30	Great Crested Grebe	Podiceps cristatus	378	91.97	
31	Oystercatcher	Haematopus ostralegus	380	92.46	
32	Avocet	Recurvirostra avosetta	313	76.16	
33	Golden Plover	Pluvialis apricaria	335	81.51	
34	Ringed Plover	Charadrius hiaticula	334	81.27	
35	Lapwing	Vanellus vanellus	394	95.86	
36	Curlew	Numenius arquata	374	91.00	
37	Black-tailed Godwit	Limosa limosa	357	86.86	
38	Jack Snipe	Lymnocryptes minimus	155	37.71	
39	Snipe	Gallinago gallinago	350	85.16	
40	Grey Phalarope	Phalaropus fulicarius	111	27.01	
41	Wood Sandpiper	Tringa glareola	188	45.74	
42	Redshank	Tringa totanus	372	90.51	
43	Dunlin	Calidris alpina	357	86.86	
44	Arctic Tern	Sterna paradisaea	167	40.63	
45	Sabine's Gull	Xema sabini	47	11.44	
46	Black-headed Gull	Chroicocephalus ridibundus	394	95.86	
47	Mediterranean Gull	Ichthyaetus melanocephalus	310	75.43	
48	Common Gull	Larus canus	367	89.29	
49	Herring Gull	Larus argentatus	389	94.65	
50	Great Black-backed Gull	Larus marinus	374	91.00	
51	Lesser Black-backed Gull	Larus fuscus	374	91.00	
52	Cormorant	Phalacrocorax carbo	393	95.62	
53	Spoonbill	Platalea leucorodia	246	59.85	
54	Little Egret	Egretta garzetta	388	94.40	
55	Cattle Egret	Bubulcus ibis	251	61.07	
56	Great White Egret	Ardea alba	337	82.00	
57	Grey Heron	Ardea cinerea	393	95.62	
58	Sparrowhawk	Accipiter nisus	384	93.43	
59	Marsh Harrier	Circus aeruginosus	349	84.91	
60	Buzzard	Buteo buteo	391	95.13	
61	Barn Owl	Tyto alba	336	81.75	
62	Tawny Owl	Strix aluco	311	75.67	
63	Kingfisher	Alcedo atthis	358	87.10	
64	Great Spotted Woodpecker	Dendrocopos major	382	92.94	
65	Kestrel	Falco tinnunculus	394	95.86	
66	Peregrine	Falco peregrinus	346	84.18	
67	Jay	Garrulus glandarius	376	91.48	
68	Magpie	Pica pica	399	97.08	
69	Jackdaw	Coloeus monedula	393	95.62	
70	Rook	Corvus frugilegus	388	94.40	
71	Carrion Crow	Corvus corone	398	96.84	
72	Raven	Corvus corax	341	82.97	
73	Coal Tit	Periparus ater	387	94.16	
74	Blue Tit	Cyanistes caeruleus	398	96.84	
75	Great Tit	Parus major	398	96.84	
76	Skylark	Alauda arvensis	369	89.78	
77	Swallow	Hirundo rustica	368	89.54	
78	House Martin	Delichon urbicum	352	85.64	
79	Cetti's Warbler	Cettia cetti	313	76.16	
80	Long-tailed Tit	Aegithalos caudatus	392	95.38	
81	Willow Warbler	Phylloscopus trochilus	333	81.02	
82	Chiffchaff	Phylloscopus collybita	373	90.75	
83	Sedge Warbler	Acrocephalus schoenobaenus	312	75.91	
84	Reed Warbler	Acrocephalus scirpaceus	301	73.24	
85	Grasshopper Warbler	Locustella naevia	177	43.07	
86	Blackcap	Sylvia atricapilla	356	86.62	
87	Whitethroat	Curruca communis	333	81.02	
88	Goldcrest	Regulus regulus	368	89.54	
89	Wren	Troglodytes troglodytes	395	96.11	
90	Nuthatch	Sitta europaea	369	89.78	
91	Treecreeper	Certhia familiaris	354	86.13	
92	Starling	Sturnus vulgaris	397	96.59	
93	Song Thrush	Turdus philomelos	389	94.65	
94	Mistle Thrush	Turdus viscivorus	369	89.78	
95	Redwing	Turdus iliacus	384	93.43	
96	Blackbird	Turdus merula	397	96.59	
97	Robin	Erithacus rubecula	398	96.84	
98	Stonechat	Saxicola rubicola	375	91.24	
99	Wheatear	Oenanthe oenanthe	314	76.40	
100	Tree Sparrow	Passer montanus	267	64.96	
101	House Sparrow	Passer domesticus	396	96.35	
102	Dunnock	Prunella modularis	394	95.86	
103	Yellow Wagtail	Motacilla flava	268	65.21	
104	Grey Wagtail	Motacilla cinerea	359	87.35	
105	Pied Wagtail	Motacilla alba	395	96.11	
106	Meadow Pipit	Anthus pratensis	373	90.75	
107	Chaffinch	Fringilla coelebs	397	96.59	
108	Greenfinch	Chloris chloris	377	91.73	
109	Linnet	Linaria cannabina	368	89.54	
110	Goldfinch	Carduelis carduelis	393	95.62	
111	Siskin	Spinus spinus	339	82.48	
112	Corn Bunting	Emberiza calandra	216	52.55	
113	Yellowhammer	Emberiza citrinella	349	84.91	
114	Reed Bunting	Emberiza schoeniclus	377	91.73