Martyn Jones: Britain Year List 2019 BOU, All records: Top Blockers Record(s) 1 to 204 of 204 total.
Seq.	Species	Scientific Name	Seen By Other Listers	Other Listers (%)	
1	Brent Goose	Branta bernicla	294	77.37	
2	Canada Goose	Branta canadensis	365	96.05	
3	Greylag Goose	Anser anser	361	95.00	
4	Pink-footed Goose	Anser brachyrhynchus	292	76.84	
5	Mute Swan	Cygnus olor	370	97.37	
6	Whooper Swan	Cygnus cygnus	284	74.74	
7	Egyptian Goose	Alopochen aegyptiaca	286	75.26	
8	Shelduck	Tadorna tadorna	358	94.21	
9	Mandarin Duck	Aix galericulata	263	69.21	
10	Garganey	Spatula querquedula	255	67.11	
11	Shoveler	Spatula clypeata	358	94.21	
12	Gadwall	Mareca strepera	354	93.16	
13	Wigeon	Mareca penelope	361	95.00	
14	Mallard	Anas platyrhynchos	371	97.63	
15	Pintail	Anas acuta	322	84.74	
16	Teal	Anas crecca	363	95.53	
17	Red-crested Pochard	Netta rufina	195	51.32	
18	Pochard	Aythya ferina	339	89.21	
19	Ring-necked Duck	Aythya collaris	160	42.11	
20	Tufted Duck	Aythya fuligula	362	95.26	
21	Scaup	Aythya marila	225	59.21	
22	Eider	Somateria mollissima	275	72.37	
23	Velvet Scoter	Melanitta fusca	152	40.00	
24	Common Scoter	Melanitta nigra	277	72.89	
25	Long-tailed Duck	Clangula hyemalis	245	64.47	
26	Goldeneye	Bucephala clangula	326	85.79	
27	Goosander	Mergus merganser	327	86.05	
28	Red-breasted Merganser	Mergus serrator	277	72.89	
29	Red Grouse	Lagopus lagopus	193	50.79	
30	Black Grouse	Lyrurus tetrix	117	30.79	
31	Grey Partridge	Perdix perdix	245	64.47	
32	Pheasant	Phasianus colchicus	361	95.00	
33	Red-legged Partridge	Alectoris rufa	324	85.26	
34	Swift	Apus apus	330	86.84	
35	Little Bustard	Tetrax tetrax	107	28.16	
36	Cuckoo	Cuculus canorus	290	76.32	
37	Woodpigeon	Columba palumbus	372	97.89	
38	Collared Dove	Streptopelia decaocto	360	94.74	
39	Water Rail	Rallus aquaticus	297	78.16	
40	Corncrake	Crex crex	25	6.58	
41	Moorhen	Gallinula chloropus	366	96.32	
42	Coot	Fulica atra	363	95.53	
43	Crane	Grus grus	181	47.63	
44	Little Grebe	Tachybaptus ruficollis	352	92.63	
45	Red-necked Grebe	Podiceps grisegena	156	41.05	
46	Great Crested Grebe	Podiceps cristatus	358	94.21	
47	Black-necked Grebe	Podiceps nigricollis	234	61.58	
48	Oystercatcher	Haematopus ostralegus	354	93.16	
49	Avocet	Recurvirostra avosetta	320	84.21	
50	Grey Plover	Pluvialis squatarola	289	76.05	
51	Golden Plover	Pluvialis apricaria	314	82.63	
52	American Golden Plover	Pluvialis dominica	54	14.21	
53	Dotterel	Eudromias morinellus	115	30.26	
54	Ringed Plover	Charadrius hiaticula	331	87.11	
55	Little Ringed Plover	Charadrius dubius	284	74.74	
56	Lapwing	Vanellus vanellus	360	94.74	
57	Eurasian Whimbrel	Numenius phaeopus	261	68.68	
58	Curlew	Numenius arquata	357	93.95	
59	Bar-tailed Godwit	Limosa lapponica	286	75.26	
60	Black-tailed Godwit	Limosa limosa	341	89.74	
61	Snipe	Gallinago gallinago	332	87.37	
62	Grey Phalarope	Phalaropus fulicarius	84	22.11	
63	Red-necked Phalarope	Phalaropus lobatus	95	25.00	
64	Common Sandpiper	Actitis hypoleucos	301	79.21	
65	Green Sandpiper	Tringa ochropus	282	74.21	
66	Wood Sandpiper	Tringa glareola	220	57.89	
67	Redshank	Tringa totanus	353	92.89	
68	Spotted Redshank	Tringa erythropus	241	63.42	
69	Greenshank	Tringa nebularia	295	77.63	
70	Turnstone	Arenaria interpres	332	87.37	
71	Knot	Calidris canutus	290	76.32	
72	Ruff	Calidris pugnax	302	79.47	
73	Stilt Sandpiper	Calidris himantopus	24	6.32	
74	Curlew Sandpiper	Calidris ferruginea	193	50.79	
75	Sanderling	Calidris alba	289	76.05	
76	Dunlin	Calidris alpina	344	90.53	
77	Little Tern	Sternula albifrons	220	57.89	
78	Arctic Tern	Sterna paradisaea	233	61.32	
79	Common Tern	Sterna hirundo	311	81.84	
80	Roseate Tern	Sterna dougallii	48	12.63	
81	Sandwich Tern	Thalasseus sandvicensis	288	75.79	
82	Little Gull	Hydrocoloeus minutus	221	58.16	
83	Kittiwake	Rissa tridactyla	297	78.16	
84	Black-headed Gull	Chroicocephalus ridibundus	370	97.37	
85	Common Gull	Larus canus	341	89.74	
86	Herring Gull	Larus argentatus	365	96.05	
87	Yellow-legged Gull	Larus michahellis	175	46.05	
88	Great Black-backed Gull	Larus marinus	351	92.37	
89	Lesser Black-backed Gull	Larus fuscus	355	93.42	
90	Iceland Gull	Larus glaucoides	105	27.63	
91	Arctic Skua	Stercorarius parasiticus	174	45.79	
92	Great Skua	Stercorarius skua	192	50.53	
93	Puffin	Fratercula arctica	219	57.63	
94	Black Guillemot	Cepphus grylle	167	43.95	
95	Razorbill	Alca torda	276	72.63	
96	Common Guillemot	Uria aalge	300	78.95	
97	Red-throated Diver	Gavia stellata	275	72.37	
98	Black-throated Diver	Gavia arctica	172	45.26	
99	Great Northern Diver	Gavia immer	228	60.00	
100	Fulmar	Fulmarus glacialis	295	77.63	
101	Gannet	Morus bassanus	316	83.16	
102	Cormorant	Phalacrocorax carbo	366	96.32	
103	Shag	Gulosus aristotelis	286	75.26	
104	Glossy Ibis	Plegadis falcinellus	109	28.68	
105	Spoonbill	Platalea leucorodia	260	68.42	
106	Bittern	Botaurus stellaris	212	55.79	
107	Little Egret	Egretta garzetta	357	93.95	
108	Cattle Egret	Bubulcus ibis	242	63.68	
109	Great White Egret	Ardea alba	302	79.47	
110	Grey Heron	Ardea cinerea	363	95.53	
111	Osprey	Pandion haliaetus	239	62.89	
112	Golden Eagle	Aquila chrysaetos	99	26.05	
113	Sparrowhawk	Accipiter nisus	348	91.58	
114	Marsh Harrier	Circus aeruginosus	330	86.84	
115	Hen Harrier	Circus cyaneus	219	57.63	
116	Red Kite	Milvus milvus	343	90.26	
117	White-tailed Eagle	Haliaeetus albicilla	89	23.42	
118	Buzzard	Buteo buteo	366	96.32	
119	Barn Owl	Tyto alba	296	77.89	
120	Little Owl	Athene noctua	219	57.63	
121	Long-eared Owl	Asio otus	121	31.84	
122	Short-eared Owl	Asio flammeus	236	62.11	
123	Kingfisher	Alcedo atthis	329	86.58	
124	Great Spotted Woodpecker	Dendrocopos major	355	93.42	
125	Green Woodpecker	Picus viridis	314	82.63	
126	Kestrel	Falco tinnunculus	356	93.68	
127	Merlin	Falco columbarius	236	62.11	
128	Hobby	Falco subbuteo	263	69.21	
129	Peregrine	Falco peregrinus	331	87.11	
130	Red-eyed Vireo	Vireo olivaceus	84	22.11	
131	Jay	Garrulus glandarius	356	93.68	
132	Magpie	Pica pica	369	97.11	
133	Chough	Pyrrhocorax pyrrhocorax	156	41.05	
134	Jackdaw	Coloeus monedula	366	96.32	
135	Rook	Corvus frugilegus	362	95.26	
136	Carrion Crow	Corvus corone	370	97.37	
137	Hooded Crow	Corvus cornix	185	48.68	
138	Raven	Corvus corax	321	84.47	
139	Waxwing	Bombycilla garrulus	203	53.42	
140	Coal Tit	Periparus ater	357	93.95	
141	Crested Tit	Lophophanes cristatus	81	21.32	
142	Marsh Tit	Poecile palustris	286	75.26	
143	Willow Tit	Poecile montanus	156	41.05	
144	Blue Tit	Cyanistes caeruleus	371	97.63	
145	Great Tit	Parus major	372	97.89	
146	Bearded Tit	Panurus biarmicus	242	63.68	
147	Skylark	Alauda arvensis	347	91.32	
148	Shore Lark	Eremophila alpestris	133	35.00	
149	Sand Martin	Riparia riparia	332	87.37	
150	Swallow	Hirundo rustica	341	89.74	
151	House Martin	Delichon urbicum	334	87.89	
152	Cetti's Warbler	Cettia cetti	299	78.68	
153	Long-tailed Tit	Aegithalos caudatus	360	94.74	
154	Hume's Warbler	Phylloscopus humei	60	15.79	
155	Chiffchaff	Phylloscopus collybita	343	90.26	
156	Sedge Warbler	Acrocephalus schoenobaenus	318	83.68	
157	Blyth's Reed Warbler	Acrocephalus dumetorum	24	6.32	
158	Reed Warbler	Acrocephalus scirpaceus	316	83.16	
159	Savi's Warbler	Locustella luscinioides	76	20.00	
160	Blackcap	Sylvia atricapilla	338	88.95	
161	Whitethroat	Curruca communis	324	85.26	
162	Dartford Warbler	Curruca undata	168	44.21	
163	Goldcrest	Regulus regulus	340	89.47	
164	Wren	Troglodytes troglodytes	364	95.79	
165	Nuthatch	Sitta europaea	336	88.42	
166	Treecreeper	Certhia familiaris	335	88.16	
167	Starling	Sturnus vulgaris	369	97.11	
168	Song Thrush	Turdus philomelos	361	95.00	
169	Mistle Thrush	Turdus viscivorus	338	88.95	
170	Redwing	Turdus iliacus	344	90.53	
171	Blackbird	Turdus merula	372	97.89	
172	Fieldfare	Turdus pilaris	331	87.11	
173	Ring Ouzel	Turdus torquatus	212	55.79	
174	Robin	Erithacus rubecula	366	96.32	
175	Pied Flycatcher	Ficedula hypoleuca	225	59.21	
176	Black Redstart	Phoenicurus ochruros	185	48.68	
177	Redstart	Phoenicurus phoenicurus	258	67.89	
178	Whinchat	Saxicola rubetra	251	66.05	
179	Stonechat	Saxicola rubicola	344	90.53	
180	Wheatear	Oenanthe oenanthe	313	82.37	
181	Eastern Black-eared Wheatear	Oenanthe melanoleuca	34	8.95	
182	Dipper	Cinclus cinclus	251	66.05	
183	Tree Sparrow	Passer montanus	281	73.95	
184	House Sparrow	Passer domesticus	368	96.84	
185	Dunnock	Prunella modularis	366	96.32	
186	Yellow Wagtail	Motacilla flava	277	72.89	
187	Grey Wagtail	Motacilla cinerea	340	89.47	
188	Pied Wagtail	Motacilla alba	362	95.26	
189	Meadow Pipit	Anthus pratensis	343	90.26	
190	Rock Pipit	Anthus petrosus	299	78.68	
191	Chaffinch	Fringilla coelebs	367	96.58	
192	Brambling	Fringilla montifringilla	282	74.21	
193	Bullfinch	Pyrrhula pyrrhula	344	90.53	
194	Greenfinch	Chloris chloris	355	93.42	
195	Twite	Linaria flavirostris	200	52.63	
196	Linnet	Linaria cannabina	348	91.58	
197	Common Redpoll	Acanthis flammea	133	35.00	
198	Goldfinch	Carduelis carduelis	364	95.79	
199	Siskin	Spinus spinus	328	86.32	
200	Lapland Bunting	Calcarius lapponicus	76	20.00	
201	Snow Bunting	Plectrophenax nivalis	215	56.58	
202	Corn Bunting	Emberiza calandra	233	61.32	
203	Yellowhammer	Emberiza citrinella	325	85.53	
204	Reed Bunting	Emberiza schoeniclus	352	92.63