Ryan Stead: Britain Year List 2023 BOU, All records: Top Blockers Record(s) 1 to 124 of 124 total.
Seq.	Species	Scientific Name	Seen By Other Listers	Other Listers (%)	
1	Canada Goose	Branta canadensis	487	98.19	
2	Greylag Goose	Anser anser	481	96.98	
3	Mute Swan	Cygnus olor	490	98.79	
4	Whooper Swan	Cygnus cygnus	386	77.82	
5	Egyptian Goose	Alopochen aegyptiaca	391	78.83	
6	Shelduck	Tadorna tadorna	477	96.17	
7	Mandarin Duck	Aix galericulata	346	69.76	
8	Shoveler	Spatula clypeata	468	94.35	
9	Gadwall	Mareca strepera	464	93.55	
10	Wigeon	Mareca penelope	472	95.16	
11	Mallard	Anas platyrhynchos	489	98.59	
12	Pintail	Anas acuta	435	87.70	
13	Teal	Anas crecca	478	96.37	
14	Red-crested Pochard	Netta rufina	204	41.13	
15	Ring-necked Duck	Aythya collaris	233	46.98	
16	Tufted Duck	Aythya fuligula	478	96.37	
17	Goldeneye	Bucephala clangula	432	87.10	
18	Goosander	Mergus merganser	434	87.50	
19	Grey Partridge	Perdix perdix	314	63.31	
20	Pheasant	Phasianus colchicus	483	97.38	
21	Red-legged Partridge	Alectoris rufa	405	81.65	
22	Swift	Apus apus	443	89.31	
23	Rock Dove (Feral Pigeon)	Columba livia	417	84.07	
24	Stock Dove	Columba oenas	449	90.52	
25	Woodpigeon	Columba palumbus	490	98.79	
26	Collared Dove	Streptopelia decaocto	484	97.58	
27	Moorhen	Gallinula chloropus	488	98.39	
28	Coot	Fulica atra	483	97.38	
29	Crane	Grus grus	257	51.81	
30	Little Grebe	Tachybaptus ruficollis	466	93.95	
31	Great Crested Grebe	Podiceps cristatus	467	94.15	
32	Oystercatcher	Haematopus ostralegus	471	94.96	
33	Avocet	Recurvirostra avosetta	432	87.10	
34	Ringed Plover	Charadrius hiaticula	443	89.31	
35	Little Ringed Plover	Charadrius dubius	373	75.20	
36	Lapwing	Vanellus vanellus	479	96.57	
37	Curlew	Numenius arquata	465	93.75	
38	Woodcock	Scolopax rusticola	321	64.72	
39	Snipe	Gallinago gallinago	446	89.92	
40	Common Sandpiper	Actitis hypoleucos	408	82.26	
41	Green Sandpiper	Tringa ochropus	349	70.36	
42	Black-headed Gull	Chroicocephalus ridibundus	485	97.78	
43	Mediterranean Gull	Ichthyaetus melanocephalus	386	77.82	
44	Common Gull	Larus canus	461	92.94	
45	Herring Gull	Larus argentatus	483	97.38	
46	Lesser Black-backed Gull	Larus fuscus	462	93.15	
47	Cormorant	Phalacrocorax carbo	485	97.78	
48	Shag	Gulosus aristotelis	393	79.23	
49	Little Egret	Egretta garzetta	473	95.36	
50	Great White Egret	Ardea alba	428	86.29	
51	Grey Heron	Ardea cinerea	484	97.58	
52	Honey-buzzard	Pernis apivorus	91	18.35	
53	Sparrowhawk	Accipiter nisus	469	94.56	
54	Goshawk	Accipiter gentilis	241	48.59	
55	Marsh Harrier	Circus aeruginosus	441	88.91	
56	Red Kite	Milvus milvus	468	94.35	
57	Buzzard	Buteo buteo	487	98.19	
58	Barn Owl	Tyto alba	413	83.27	
59	Tawny Owl	Strix aluco	384	77.42	
60	Kingfisher	Alcedo atthis	433	87.30	
61	Great Spotted Woodpecker	Dendrocopos major	467	94.15	
62	Green Woodpecker	Picus viridis	406	81.85	
63	Kestrel	Falco tinnunculus	486	97.98	
64	Merlin	Falco columbarius	280	56.45	
65	Hobby	Falco subbuteo	352	70.97	
66	Peregrine	Falco peregrinus	427	86.09	
67	Ring-necked Parakeet	Psittacula krameri	326	65.73	
68	Jay	Garrulus glandarius	470	94.76	
69	Magpie	Pica pica	490	98.79	
70	Jackdaw	Coloeus monedula	488	98.39	
71	Rook	Corvus frugilegus	476	95.97	
72	Carrion Crow	Corvus corone	489	98.59	
73	Raven	Corvus corax	430	86.69	
74	Coal Tit	Periparus ater	468	94.35	
75	Blue Tit	Cyanistes caeruleus	488	98.39	
76	Great Tit	Parus major	487	98.19	
77	Bearded Tit	Panurus biarmicus	291	58.67	
78	Woodlark	Lullula arborea	219	44.15	
79	Skylark	Alauda arvensis	469	94.56	
80	Sand Martin	Riparia riparia	443	89.31	
81	Swallow	Hirundo rustica	453	91.33	
82	House Martin	Delichon urbicum	444	89.52	
83	Long-tailed Tit	Aegithalos caudatus	483	97.38	
84	Wood Warbler	Phylloscopus sibilatrix	177	35.69	
85	Willow Warbler	Phylloscopus trochilus	425	85.69	
86	Chiffchaff	Phylloscopus collybita	465	93.75	
87	Blackcap	Sylvia atricapilla	457	92.14	
88	Garden Warbler	Sylvia borin	365	73.59	
89	Whitethroat	Curruca communis	428	86.29	
90	Goldcrest	Regulus regulus	458	92.34	
91	Wren	Troglodytes troglodytes	486	97.98	
92	Nuthatch	Sitta europaea	447	90.12	
93	Treecreeper	Certhia familiaris	438	88.31	
94	Starling	Sturnus vulgaris	487	98.19	
95	Song Thrush	Turdus philomelos	472	95.16	
96	Mistle Thrush	Turdus viscivorus	452	91.13	
97	Redwing	Turdus iliacus	467	94.15	
98	Blackbird	Turdus merula	490	98.79	
99	Fieldfare	Turdus pilaris	453	91.33	
100	Robin	Erithacus rubecula	485	97.78	
101	Pied Flycatcher	Ficedula hypoleuca	263	53.02	
102	Redstart	Phoenicurus phoenicurus	314	63.31	
103	Stonechat	Saxicola rubicola	459	92.54	
104	Wheatear	Oenanthe oenanthe	413	83.27	
105	Dipper	Cinclus cinclus	330	66.53	
106	House Sparrow	Passer domesticus	488	98.39	
107	Dunnock	Prunella modularis	481	96.98	
108	Yellow Wagtail	Motacilla flava	338	68.15	
109	Grey Wagtail	Motacilla cinerea	451	90.93	
110	Pied Wagtail	Motacilla alba	479	96.57	
111	Meadow Pipit	Anthus pratensis	467	94.15	
112	Tree Pipit	Anthus trivialis	286	57.66	
113	Chaffinch	Fringilla coelebs	484	97.58	
114	Hawfinch	Coccothraustes coccothraustes	234	47.18	
115	Bullfinch	Pyrrhula pyrrhula	435	87.70	
116	Greenfinch	Chloris chloris	471	94.96	
117	Twite	Linaria flavirostris	210	42.34	
118	Linnet	Linaria cannabina	458	92.34	
119	Common Crossbill	Loxia curvirostra	239	48.19	
120	Goldfinch	Carduelis carduelis	486	97.98	
121	Siskin	Spinus spinus	425	85.69	
122	Corn Bunting	Emberiza calandra	286	57.66	
123	Yellowhammer	Emberiza citrinella	421	84.88	
124	Reed Bunting	Emberiza schoeniclus	463	93.35