Chris Waring: Britain Year List 2023 BOU, All records: Top Blockers Record(s) 1 to 75 of 75 total.
Seq.	Species	Scientific Name	Seen By Other Listers	Other Listers (%)	
1	Canada Goose	Branta canadensis	487	98.19	
2	Mute Swan	Cygnus olor	490	98.79	
3	Mallard	Anas platyrhynchos	489	98.59	
4	Tufted Duck	Aythya fuligula	478	96.37	
5	Pheasant	Phasianus colchicus	483	97.38	
6	Chimney Swift	Chaetura pelagica	1	0.20	
7	Cuckoo	Cuculus canorus	389	78.43	
8	Woodpigeon	Columba palumbus	490	98.79	
9	Collared Dove	Streptopelia decaocto	484	97.58	
10	Moorhen	Gallinula chloropus	488	98.39	
11	Coot	Fulica atra	483	97.38	
12	Crane	Grus grus	257	51.81	
13	Great Crested Grebe	Podiceps cristatus	467	94.15	
14	Oystercatcher	Haematopus ostralegus	471	94.96	
15	Golden Plover	Pluvialis apricaria	421	84.88	
16	Woodcock	Scolopax rusticola	321	64.72	
17	Snipe	Gallinago gallinago	446	89.92	
18	Black-headed Gull	Chroicocephalus ridibundus	485	97.78	
19	Herring Gull	Larus argentatus	483	97.38	
20	Great Black-backed Gull	Larus marinus	453	91.33	
21	Lesser Black-backed Gull	Larus fuscus	462	93.15	
22	Razorbill	Alca torda	372	75.00	
23	Fulmar	Fulmarus glacialis	368	74.19	
24	Manx Shearwater	Puffinus puffinus	274	55.24	
25	Gannet	Morus bassanus	404	81.45	
26	Cormorant	Phalacrocorax carbo	485	97.78	
27	Shag	Gulosus aristotelis	393	79.23	
28	Little Egret	Egretta garzetta	473	95.36	
29	Grey Heron	Ardea cinerea	484	97.58	
30	Sparrowhawk	Accipiter nisus	469	94.56	
31	Montagu's Harrier	Circus pygargus	34	6.85	
32	Red Kite	Milvus milvus	468	94.35	
33	Buzzard	Buteo buteo	487	98.19	
34	Barn Owl	Tyto alba	413	83.27	
35	Great Spotted Woodpecker	Dendrocopos major	467	94.15	
36	Kestrel	Falco tinnunculus	486	97.98	
37	Merlin	Falco columbarius	280	56.45	
38	Hobby	Falco subbuteo	352	70.97	
39	Ring-necked Parakeet	Psittacula krameri	326	65.73	
40	Jay	Garrulus glandarius	470	94.76	
41	Magpie	Pica pica	490	98.79	
42	Chough	Pyrrhocorax pyrrhocorax	210	42.34	
43	Jackdaw	Coloeus monedula	488	98.39	
44	Rook	Corvus frugilegus	476	95.97	
45	Carrion Crow	Corvus corone	489	98.59	
46	Raven	Corvus corax	430	86.69	
47	Blue Tit	Cyanistes caeruleus	488	98.39	
48	Great Tit	Parus major	487	98.19	
49	Skylark	Alauda arvensis	469	94.56	
50	Sand Martin	Riparia riparia	443	89.31	
51	Swallow	Hirundo rustica	453	91.33	
52	House Martin	Delichon urbicum	444	89.52	
53	Willow Warbler	Phylloscopus trochilus	425	85.69	
54	Chiffchaff	Phylloscopus collybita	465	93.75	
55	Whitethroat	Curruca communis	428	86.29	
56	Dartford Warbler	Curruca undata	184	37.10	
57	Wren	Troglodytes troglodytes	486	97.98	
58	Starling	Sturnus vulgaris	487	98.19	
59	Song Thrush	Turdus philomelos	472	95.16	
60	Blackbird	Turdus merula	490	98.79	
61	Fieldfare	Turdus pilaris	453	91.33	
62	Robin	Erithacus rubecula	485	97.78	
63	Black Redstart	Phoenicurus ochruros	245	49.40	
64	Stonechat	Saxicola rubicola	459	92.54	
65	Wheatear	Oenanthe oenanthe	413	83.27	
66	House Sparrow	Passer domesticus	488	98.39	
67	Dunnock	Prunella modularis	481	96.98	
68	Grey Wagtail	Motacilla cinerea	451	90.93	
69	Pied Wagtail	Motacilla alba	479	96.57	
70	Meadow Pipit	Anthus pratensis	467	94.15	
71	Rock Pipit	Anthus petrosus	381	76.81	
72	Chaffinch	Fringilla coelebs	484	97.58	
73	Greenfinch	Chloris chloris	471	94.96	
74	Linnet	Linaria cannabina	458	92.34	
75	Goldfinch	Carduelis carduelis	486	97.98