Geoffrey Raby: Britain Year List 2023 BOU, All records: Top Blockers Record(s) 1 to 70 of 70 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	Egyptian Goose	Alopochen aegyptiaca	391	78.83	
5	Mandarin Duck	Aix galericulata	346	69.76	
6	Shoveler	Spatula clypeata	468	94.35	
7	Wigeon	Mareca penelope	472	95.16	
8	Mallard	Anas platyrhynchos	489	98.59	
9	Teal	Anas crecca	478	96.37	
10	Tufted Duck	Aythya fuligula	478	96.37	
11	Goosander	Mergus merganser	434	87.50	
12	Pheasant	Phasianus colchicus	483	97.38	
13	Swift	Apus apus	443	89.31	
14	Rock Dove (Feral Pigeon)	Columba livia	417	84.07	
15	Woodpigeon	Columba palumbus	490	98.79	
16	Collared Dove	Streptopelia decaocto	484	97.58	
17	Moorhen	Gallinula chloropus	488	98.39	
18	Coot	Fulica atra	483	97.38	
19	Great Crested Grebe	Podiceps cristatus	467	94.15	
20	Oystercatcher	Haematopus ostralegus	471	94.96	
21	Little Ringed Plover	Charadrius dubius	373	75.20	
22	Lapwing	Vanellus vanellus	479	96.57	
23	Common Tern	Sterna hirundo	406	81.85	
24	Black-headed Gull	Chroicocephalus ridibundus	485	97.78	
25	Common Gull	Larus canus	461	92.94	
26	Herring Gull	Larus argentatus	483	97.38	
27	Lesser Black-backed Gull	Larus fuscus	462	93.15	
28	Cormorant	Phalacrocorax carbo	485	97.78	
29	Little Egret	Egretta garzetta	473	95.36	
30	Grey Heron	Ardea cinerea	484	97.58	
31	Buzzard	Buteo buteo	487	98.19	
32	Green Woodpecker	Picus viridis	406	81.85	
33	Kestrel	Falco tinnunculus	486	97.98	
34	Ring-necked Parakeet	Psittacula krameri	326	65.73	
35	Jay	Garrulus glandarius	470	94.76	
36	Magpie	Pica pica	490	98.79	
37	Jackdaw	Coloeus monedula	488	98.39	
38	Carrion Crow	Corvus corone	489	98.59	
39	Coal Tit	Periparus ater	468	94.35	
40	Blue Tit	Cyanistes caeruleus	488	98.39	
41	Great Tit	Parus major	487	98.19	
42	Skylark	Alauda arvensis	469	94.56	
43	Sand Martin	Riparia riparia	443	89.31	
44	Swallow	Hirundo rustica	453	91.33	
45	House Martin	Delichon urbicum	444	89.52	
46	Cetti's Warbler	Cettia cetti	419	84.48	
47	Long-tailed Tit	Aegithalos caudatus	483	97.38	
48	Willow Warbler	Phylloscopus trochilus	425	85.69	
49	Chiffchaff	Phylloscopus collybita	465	93.75	
50	Reed Warbler	Acrocephalus scirpaceus	388	78.23	
51	Blackcap	Sylvia atricapilla	457	92.14	
52	Garden Warbler	Sylvia borin	365	73.59	
53	Whitethroat	Curruca communis	428	86.29	
54	Wren	Troglodytes troglodytes	486	97.98	
55	Nuthatch	Sitta europaea	447	90.12	
56	Starling	Sturnus vulgaris	487	98.19	
57	Song Thrush	Turdus philomelos	472	95.16	
58	Mistle Thrush	Turdus viscivorus	452	91.13	
59	Redwing	Turdus iliacus	467	94.15	
60	Blackbird	Turdus merula	490	98.79	
61	Robin	Erithacus rubecula	485	97.78	
62	House Sparrow	Passer domesticus	488	98.39	
63	Dunnock	Prunella modularis	481	96.98	
64	Pied Wagtail	Motacilla alba	479	96.57	
65	Chaffinch	Fringilla coelebs	484	97.58	
66	Bullfinch	Pyrrhula pyrrhula	435	87.70	
67	Greenfinch	Chloris chloris	471	94.96	
68	Goldfinch	Carduelis carduelis	486	97.98	
69	Siskin	Spinus spinus	425	85.69	
70	Reed Bunting	Emberiza schoeniclus	463	93.35