Andrew Campbell: Britain Year List 2023 BOU, All records: Top Blockers Record(s) 1 to 108 of 108 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	Pink-footed Goose	Anser brachyrhynchus	399	80.44	
4	Mute Swan	Cygnus olor	490	98.79	
5	Shelduck	Tadorna tadorna	477	96.17	
6	Mallard	Anas platyrhynchos	489	98.59	
7	Tufted Duck	Aythya fuligula	478	96.37	
8	Eider	Somateria mollissima	354	71.37	
9	Goosander	Mergus merganser	434	87.50	
10	Red-breasted Merganser	Mergus serrator	364	73.39	
11	Red Grouse	Lagopus lagopus	258	52.02	
12	Red-legged Partridge	Alectoris rufa	405	81.65	
13	Swift	Apus apus	443	89.31	
14	Cuckoo	Cuculus canorus	389	78.43	
15	Rock Dove (Feral Pigeon)	Columba livia	417	84.07	
16	Stock Dove	Columba oenas	449	90.52	
17	Woodpigeon	Columba palumbus	490	98.79	
18	Collared Dove	Streptopelia decaocto	484	97.58	
19	Moorhen	Gallinula chloropus	488	98.39	
20	Coot	Fulica atra	483	97.38	
21	Great Crested Grebe	Podiceps cristatus	467	94.15	
22	Oystercatcher	Haematopus ostralegus	471	94.96	
23	Ringed Plover	Charadrius hiaticula	443	89.31	
24	Lapwing	Vanellus vanellus	479	96.57	
25	Curlew	Numenius arquata	465	93.75	
26	Common Sandpiper	Actitis hypoleucos	408	82.26	
27	Redshank	Tringa totanus	470	94.76	
28	Arctic Tern	Sterna paradisaea	271	54.64	
29	Common Tern	Sterna hirundo	406	81.85	
30	Sandwich Tern	Thalasseus sandvicensis	361	72.78	
31	Black-headed Gull	Chroicocephalus ridibundus	485	97.78	
32	Mediterranean Gull	Ichthyaetus melanocephalus	385	77.62	
33	Common Gull	Larus canus	461	92.94	
34	Herring Gull	Larus argentatus	483	97.38	
35	Great Black-backed Gull	Larus marinus	454	91.53	
36	Puffin	Fratercula arctica	260	52.42	
37	Black Guillemot	Cepphus grylle	195	39.31	
38	Common Guillemot	Uria aalge	391	78.83	
39	Red-throated Diver	Gavia stellata	356	71.77	
40	Fulmar	Fulmarus glacialis	368	74.19	
41	Manx Shearwater	Puffinus puffinus	274	55.24	
42	Gannet	Morus bassanus	404	81.45	
43	Cormorant	Phalacrocorax carbo	485	97.78	
44	Shag	Gulosus aristotelis	393	79.23	
45	Grey Heron	Ardea cinerea	484	97.58	
46	Golden Eagle	Aquila chrysaetos	101	20.36	
47	Sparrowhawk	Accipiter nisus	469	94.56	
48	Marsh Harrier	Circus aeruginosus	440	88.71	
49	Red Kite	Milvus milvus	467	94.15	
50	White-tailed Eagle	Haliaeetus albicilla	164	33.06	
51	Buzzard	Buteo buteo	487	98.19	
52	Little Owl	Athene noctua	261	52.62	
53	Tawny Owl	Strix aluco	385	77.62	
54	Great Spotted Woodpecker	Dendrocopos major	467	94.15	
55	Green Woodpecker	Picus viridis	406	81.85	
56	Kestrel	Falco tinnunculus	486	97.98	
57	Peregrine	Falco peregrinus	427	86.09	
58	Jay	Garrulus glandarius	470	94.76	
59	Magpie	Pica pica	490	98.79	
60	Jackdaw	Coloeus monedula	488	98.39	
61	Rook	Corvus frugilegus	476	95.97	
62	Carrion Crow	Corvus corone	489	98.59	
63	Hooded Crow	Corvus cornix	210	42.34	
64	Raven	Corvus corax	430	86.69	
65	Coal Tit	Periparus ater	468	94.35	
66	Blue Tit	Cyanistes caeruleus	488	98.39	
67	Great Tit	Parus major	487	98.19	
68	Skylark	Alauda arvensis	469	94.56	
69	Sand Martin	Riparia riparia	443	89.31	
70	Swallow	Hirundo rustica	453	91.33	
71	House Martin	Delichon urbicum	444	89.52	
72	Long-tailed Tit	Aegithalos caudatus	483	97.38	
73	Willow Warbler	Phylloscopus trochilus	425	85.69	
74	Chiffchaff	Phylloscopus collybita	465	93.75	
75	Sedge Warbler	Acrocephalus schoenobaenus	411	82.86	
76	Blackcap	Sylvia atricapilla	457	92.14	
77	Garden Warbler	Sylvia borin	365	73.59	
78	Lesser Whitethroat	Curruca curruca	324	65.32	
79	Goldcrest	Regulus regulus	458	92.34	
80	Wren	Troglodytes troglodytes	486	97.98	
81	Nuthatch	Sitta europaea	447	90.12	
82	Treecreeper	Certhia familiaris	438	88.31	
83	Short-toed Treecreeper	Certhia brachydactyla	1	0.20	
84	Starling	Sturnus vulgaris	487	98.19	
85	Song Thrush	Turdus philomelos	472	95.16	
86	Mistle Thrush	Turdus viscivorus	452	91.13	
87	Redwing	Turdus iliacus	466	93.95	
88	Blackbird	Turdus merula	490	98.79	
89	Spotted Flycatcher	Muscicapa striata	322	64.92	
90	Robin	Erithacus rubecula	485	97.78	
91	Stonechat	Saxicola rubicola	459	92.54	
92	Wheatear	Oenanthe oenanthe	413	83.27	
93	Dipper	Cinclus cinclus	330	66.53	
94	House Sparrow	Passer domesticus	488	98.39	
95	Dunnock	Prunella modularis	481	96.98	
96	Grey Wagtail	Motacilla cinerea	451	90.93	
97	Pied Wagtail	Motacilla alba	478	96.37	
98	Meadow Pipit	Anthus pratensis	467	94.15	
99	Rock Pipit	Anthus petrosus	381	76.81	
100	Chaffinch	Fringilla coelebs	484	97.58	
101	Bullfinch	Pyrrhula pyrrhula	435	87.70	
102	Greenfinch	Chloris chloris	471	94.96	
103	Linnet	Linaria cannabina	458	92.34	
104	Lesser Redpoll	Acanthis cabaret	345	69.56	
105	Goldfinch	Carduelis carduelis	486	97.98	
106	Siskin	Spinus spinus	425	85.69	
107	Yellowhammer	Emberiza citrinella	421	84.88	
108	Reed Bunting	Emberiza schoeniclus	463	93.35