BBS

Number of 1km squares in which each species
was recorded in North Scotland

These figures show the total number of squares in which a given species was recorded at least once in a particular year. They provide as useful indication of which species are widely distributed and which have more restricted distributions. For comparative purposes the data can be used to calculate the frequency of occurrence of each species by dividing the number of squares occupied by the total number of squares surveyed. This measure has the advantage that it can be used to compare results based on different numbers of squares. Particular care should be taken in interpreting such results where only a few squares could be surveyed (fewer than 30-50 squares). While these figures may provide a general indication of major changes in distributions over time they do not provide a statistically robust measure of such changes because they do not take account of the BBS sampling strategy or of temporal variation in the sample of squares surveyed.
BBS trend analyses are available here

Species	94	95	96	97	98	99	00	01	02	03	04	05	06	07	08	09
Total No squares surveyed	134	150	162	160	154	127	107	38	91	104	112	124	133	159	118	112
Mute Swan	5	5	2	3	3	3	5	1	5	5	5	2	4	6	5	7
Black Swan	.	.	.	.	.	1	.	.	1	.	.	.	.	.	.	.
Whooper Swan	.	1	.	.	1	2	1	.	.	2	.	1	1	.	1	2
Pink-footed Goose	3	.	.	3	2	2	3	.	4	1	3	3	1	.	1	1
Greylag Goose	9	12	11	12	7	5	7	.	7	11	13	17	15	15	11	16
Feral/hybrid Goose	.	.	.	.	.	.	.	.	.	.	1	.	.	.	.	.
Bar-headed Goose	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	1
Snow Goose	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	1
Canada Goose	1	1	.	1	1	2	2	1	.	1	.	1	4	.	1	1
Barnacle Goose	.	.	1	.	.	.	.	.	.	.	.	.	1	.	.	.
Shelduck	3	6	3	3	5	5	4	1	4	6	8	4	6	5	5	1
Mandarin	.	.	.	.	.	.	.	.	.	.	.	1	1	.	.	.
Wigeon	2	1	.	3	2	1	.	.	1	1	4	1	1	1	1	1
Gadwall	.	.	.	.	.	.	.	.	.	.	1	.	1	.	.	.
Teal	5	6	5	5	6	2	3	1	3	10	4	3	3	3	3	4
Mallard	28	37	41	33	33	27	26	5	22	28	31	34	31	37	31	25
Shoveler	.	.	.	1	.	.	.	.	.	.	2	.	.	.	.	.
Tufted Duck	2	2	4	4	4	3	5	1	5	5	3	2	8	5	2	4
Scaup	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	1
Eider	2	6	3	3	1	3	5	.	3	3	2	2	4	6	2	1
Common Scoter	1	1	.	1	.	.	.	.	.	.	.	.	.	1	.	.
Goldeneye	1	1	1	1	.	.	1	.	1	2	1	1	.	2	1	1
Red-breasted Merganser	4	5	7	7	7	10	8	4	4	9	9	3	7	4	5	1
Goosander	5	6	3	2	2	2	1	.	1	2	.	1	1	1	1	2
Red Grouse	36	41	48	48	48	37	24	11	24	25	30	33	21	32	34	26
Ptarmigan	1	.	2	2	2	3	1	.	.	.	.	.	1	3	1	.
Black Grouse	2	4	1	3	1	2	2	.	1	2	1	1	3	4	2	1
Capercaillie	.	.	.	1	.	.	.	.	.	.	.	.	.	.	.	.
Red-legged Partridge	1	2	1	.	.	.	1	1	2	2	2	5	4	7	4	6
Grey Partridge	5	6	13	8	8	6	4	1	4	3	4	4	2	5	2	2
Quail	.	1	.	1	1	.	.	.	1	1	1	.	.	.	.	.
Reeves Pheasant	.	.	.	.	.	.	.	.	.	.	.	1	.	.	.	.
Pheasant	29	29	43	38	41	41	30	12	30	31	36	41	50	63	49	50
Peafowl	.	.	.	.	.	.	1	.	.	.	.	1	2	1	1	.
Red-throated Diver	10	8	13	14	12	8	10	3	11	12	11	13	13	10	8	10
Black-throated Diver	.	1	1	4	4	5	2	1	2	1	3	5	3	6	1	3
Great Northern Diver	1	.	.	1	1	3	2	.	1	1	1	1	1	.	1	1
Little Grebe	.	.	.	.	.	.	.	.	.	1	1	2	.	2	2	2
Fulmar	8	10	9	11	10	8	11	1	11	6	10	8	11	5	2	3
Manx Shearwater	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	1
Gannet	.	1	.	1	1	2	1	.	1	.	2	2	1	1	1	3
Cormorant	2	1	5	1	2	5	4	.	.	1	2	3	2	1	1	2
Shag	2	2	1	1	2	3	2	.	1	2	3	1	4	2	1	1
Grey Heron	9	14	18	21	16	13	14	3	12	12	18	19	15	22	13	13
Black Kite	.	.	1	.	.	.	.	.	.	.	.	.	.	.	.	.
Red Kite	.	.	1	3	2	4	5	1	1	2	3	3	4	4	4	4
White-tailed Eagle	.	.	.	.	1	.	2	.	2	1	1	1	.	1	.	1
Marsh Harrier	.	.	.	.	.	1	.	.	.	.	1	.	1	.	.	1
Hen Harrier	3	3	5	4	5	3	3	.	2	3	1	5	7	5	4	5
Goshawk	.	.	.	.	.	.	.	.	.	1	.	.	.	.	.	.
Sparrowhawk	8	7	9	6	5	7	5	1	4	7	4	4	4	8	5	3
Buzzard	32	34	42	41	39	39	43	14	41	43	41	49	50	65	51	44
Golden Eagle	3	6	3	5	1	1	4	1	2	2	2	7	2	5	6	5
Osprey	2	2	1	.	3	2	1	.	3	1	3	4	3	3	6	5
Kestrel	11	11	27	18	16	10	12	4	13	11	13	9	7	14	10	4
Merlin	3	7	4	8	7	2	1	2	1	4	2	5	3	6	1	3
Peregrine	2	5	5	3	4	1	.	.	.	.	1	3	1	2	1	.
Water Rail	1	.	.	.	.	.	.	.	.	1	1	1	.	.	.	.
Corncrake	.	.	.	2	2	.	1	1	.	.	.	.	.	.	.	.
Moorhen	1	1	4	1	1	1	2	.	4	3	2	3	4	2	3	3
Coot	.	.	.	.	.	1	1	.	.	1	1	.	1	2	2	1
Oystercatcher	51	59	65	59	58	60	48	12	41	45	46	53	56	59	42	45
Little Ringed Plover	.	.	.	.	.	1	.	.	.	.	.	.	.	.	.	.
Ringed Plover	7	9	10	7	6	7	5	2	6	7	7	7	8	9	5	6
Dotterel	.	.	1	.	.	2	1	.	.	.	.	.	1	.	.	1
Golden Plover	42	44	45	55	46	28	21	6	23	29	26	34	35	42	31	26
Lapwing	44	44	45	41	37	36	29	7	30	34	30	40	41	45	33	30
Sanderling	.	.	.	.	.	1	.	.	.	.	.	.	.	.	.	.
Dunlin	21	18	21	19	20	12	12	3	9	11	11	14	10	16	8	10
Jack Snipe	.	.	.	.	.	.	.	.	.	.	1	.	.	.	.	.
Snipe	35	39	39	40	37	31	29	7	25	30	32	40	30	45	32	31
Woodcock	2	2	2	1	1	.	1	1	.	.	.	.	1	.	.	2
Black-tailed Godwit	.	.	.	.	.	.	.	.	.	.	.	1	.	1	.	.
Bar-tailed Godwit	.	.	.	.	.	.	.	.	.	1	.	.	1	.	.	1
Whimbrel	3	2	4	2	1	.	2	1	2	2	3	3	2	3	1	.
Curlew	56	62	64	66	58	57	50	14	43	45	44	48	48	53	38	38
Common Sandpiper	22	19	24	26	28	16	14	8	16	13	15	14	20	12	12	10
Green Sandpiper	.	.	.	1	.	.	.	.	.	.	.	.	1	.	.	.
Greenshank	9	12	7	13	13	9	4	1	4	5	4	13	8	10	5	8
Redshank	14	15	14	11	9	9	9	2	10	13	17	12	18	16	9	12
Turnstone	1	.	.	.	.	.	.	.	.	.	.	.	5	1	1	1
Red-necked Phalarope	.	.	.	.	.	.	1	1	1	.	1	1	1	1	.	.
Arctic Skua	9	6	9	7	6	8	8	2	8	6	9	6	7	6	2	1
Great Skua	6	5	5	7	4	7	7	1	8	10	10	10	9	9	3	4
Kittiwake	.	.	.	.	.	.	3	.	1	.	3	1	.	1	.	.
Black-headed Gull	32	27	34	30	29	21	21	7	21	19	23	18	13	20	18	22
Common Gull	43	50	48	48	37	42	40	12	32	41	41	48	43	53	37	37
Lesser Black-backed Gull	9	9	15	15	10	15	12	4	8	11	9	18	14	11	9	11
Herring Gull	39	41	54	40	43	45	29	12	30	31	42	41	48	46	41	30
Iceland Gull	.	.	.	.	.	.	.	.	.	1	.	.	.	.	.	.
Great Black-backed Gull	23	22	28	26	20	25	20	6	18	21	22	29	27	20	17	17
Little Tern	.	.	.	.	.	.	.	.	.	1	1	.	.	.	.	1
Sandwich Tern	.	1	1	.	.	1	.	.	2	1	1	2	2	.	.	.
Common Tern	1	3	3	3	2	3	2	.	4	1	1	2	4	4	1	1
Arctic Tern	5	9	5	7	3	4	6	.	6	5	8	6	8	6	8	5
Guillemot	.	.	1	.	.	.	1	.	.	.	1	2	1	1	.	.
Razorbill	.	.	1	.	.	1	.	.	.	.	.	.	.	.	.	.
Black Guillemot	.	1	1	1	1	1	1	.	.	1	1	.	.	.	.	.
Puffin	.	.	.	.	.	.	.	.	.	.	.	.	1	.	.	.
Rock Dove	6	5	7	9	7	8	7	3	11	9	9	7	10	9	7	6
Feral Pigeon	17	20	16	17	18	13	11	6	13	14	18	22	18	21	23	17
Stock Dove	3	4	3	2	2	1	3	.	3	3	4	6	6	8	7	6
Woodpigeon	44	56	66	56	58	64	50	21	48	48	51	60	63	81	68	67
Collared Dove	4	8	9	7	9	8	4	3	5	6	10	12	16	13	13	12
Turtle Dove	.	.	.	1	.	.	.	.	.	.	.	.	.	.	.	.
Cuckoo	38	43	52	38	41	36	35	15	30	30	41	43	46	50	38	37
Barn Owl	.	.	.	.	.	1	.	.	1	.	.	.	.	.	.	.
Tawny Owl	2	1	3	2	.	2	2	.	2	.	.	1	1	3	3	.
Long-eared Owl	.	1	.	.	.	.	.	.	.	.	.	.	.	.	.	.
Short-eared Owl	2	6	9	2	3	1	1	.	2	3	4	7	6	4	1	1
Nightjar	.	1	.	.	.	.	.	.	.	.	.	.	.	.	.	.
Swift	9	5	9	5	10	7	5	2	6	9	7	10	9	10	7	8
Green Woodpecker	1	1	.	3	3	2	2	.	1	1	1	1	.	1	.	.
Great Spotted Woodpecker	5	5	6	5	9	10	10	3	8	12	9	18	24	22	25	23
Skylark	83	95	108	110	108	78	65	21	54	73	73	82	93	109	79	75
Sand Martin	4	8	15	5	7	7	7	1	3	4	7	11	13	10	13	8
Swallow	33	39	53	46	54	47	42	15	37	40	49	57	57	61	54	51
House Martin	9	11	13	10	10	12	10	2	10	7	14	17	15	21	15	19
Tree Pipit	13	14	17	10	13	13	12	11	7	10	12	13	12	20	17	17
Meadow Pipit	116	132	137	137	119	104	86	32	76	89	91	108	112	112	94	92
Rock Pipit	4	4	3	4	5	3	5	.	3	2	2	1	4	4	1	2
Yellow Wagtail	.	.	.	.	.	.	.	.	1	.	.	.	.	.	.	.
Grey Wagtail	8	12	6	4	7	9	7	4	9	8	6	11	6	14	7	5
Pied Wagtail	38	50	63	46	50	52	36	11	34	46	45	49	45	57	40	37
Dipper	7	7	10	7	9	3	4	.	4	7	6	8	9	7	4	3
Wren	71	87	70	77	86	82	69	24	57	64	76	84	86	108	79	72
Dunnock	25	30	36	37	42	44	34	8	29	32	30	37	44	43	38	38
Robin	57	62	62	65	67	62	52	20	48	53	57	59	65	73	63	65
Redstart	2	3	8	4	5	6	4	2	4	4	3	6	6	5	3	7
Whinchat	9	12	13	8	11	7	7	4	3	3	4	4	4	5	2	1
Stonechat	9	12	8	5	12	17	17	11	12	9	17	28	23	49	26	20
Wheatear	42	43	51	50	41	33	25	9	27	33	39	39	44	44	26	34
Ring Ouzel	2	2	5	4	5	2	4	.	1	.	.	2	3	1	2	1
Blackbird	44	51	60	58	55	56	48	12	43	50	45	60	62	78	56	55
Fieldfare	.	3	.	1	3	.	2	.	.	2	.	.	.	.	3	.
Song Thrush	35	45	60	48	53	50	46	15	45	45	42	57	53	58	51	49
Redwing	1	3	2	3	.	2	.	.	2	1	1	1	.	1	.	.
Mistle Thrush	21	28	24	21	26	31	28	10	20	23	29	33	30	39	31	28
Grasshopper Warbler	1	4	2	1	2	1	.	.	1	1	6	3	2	8	5	6
Sedge Warbler	16	14	15	12	16	19	13	5	14	11	15	21	15	20	19	22
Reed Warbler	.	1	.	.	.	.	.	.	.	.	.	1	.	.	.	.
Blackcap	6	1	4	4	6	4	3	2	3	3	6	5	8	15	7	7
Garden Warbler	2	3	5	3	3	1	5	2	2	2	2	3	.	6	3	3
Whitethroat	12	12	18	15	15	9	13	4	13	13	17	20	20	25	22	18
Wood Warbler	3	5	3	4	3	2	2	3	2	2	1	1	5	4	1	.
Chiffchaff	4	5	3	5	8	9	5	2	5	1	3	10	7	8	9	10
Willow Warbler	63	74	88	81	79	70	60	25	56	61	64	68	68	84	71	72
Goldcrest	24	36	34	39	34	29	24	11	23	27	30	41	29	41	34	28
Spotted Flycatcher	10	9	11	8	10	7	6	4	2	5	7	17	12	14	8	8
Pied Flycatcher	1	.	.	.	.	.	.	.	.	.	.	1	.	1	.	.
Long-tailed Tit	4	4	6	12	4	8	6	1	4	4	7	5	7	10	6	7
Blue Tit	30	33	40	49	45	44	34	13	30	38	40	45	43	62	52	49
Great Tit	31	34	35	41	46	41	38	16	35	39	44	43	48	52	46	37
Crested Tit	1	.	2	2	1	2	1	.	1	1	1	4	4	3	3	2
Coal Tit	45	46	55	52	45	41	35	18	33	43	45	48	43	55	47	48
Marsh Tit	.	1	.	1	.	.	.	1	.	.	.	.	.	.	.	.
Treecreeper	17	15	17	7	7	14	8	2	7	6	11	12	17	19	17	8
Red-backed Shrike	.	.	.	1	.	.	.	.	.	.	.	.	.	.	.	.
Jay	1	2	.	.	4	6	6	1	2	3	3	4	2	7	2	4
Magpie	10	8	14	13	16	9	8	2	8	12	6	10	9	12	11	10
Jackdaw	24	28	36	33	27	30	21	10	21	25	26	32	34	40	30	33
Rook	30	34	43	38	39	31	32	7	26	25	28	30	30	42	33	29
Carrion Crow	35	43	52	47	46	47	48	17	38	44	38	47	52	67	48	46
Hooded Crow	34	45	44	52	41	38	31	16	22	35	39	43	42	47	31	31
Carrion/Hooded (intermediate)	.	.	.	.	.	1	1	.	.	1	.	1	.	.	2	2
Raven	24	28	32	16	31	27	19	4	9	22	14	18	24	29	22	18
Starling	38	49	54	44	46	51	42	9	44	42	47	52	50	61	45	40
House Sparrow	22	29	29	27	33	27	21	8	22	25	23	29	30	34	22	26
Tree Sparrow	1	1	7	5	5	3	5	2	4	6	8	6	10	9	9	11
Chaffinch	75	79	98	82	86	76	69	29	59	64	68	77	75	100	71	75
Brambling	.	.	.	1	.	.	.	.	.	1	1	.	.	.	1	.
Greenfinch	21	30	31	31	34	29	27	11	22	24	28	31	30	42	37	32
Goldfinch	10	13	22	21	19	22	21	3	16	16	14	24	16	25	21	23
Siskin	33	27	47	37	29	27	27	12	22	23	22	31	23	41	38	39
Linnet	23	26	31	29	29	28	29	6	22	26	18	29	25	26	27	19
Twite	14	19	11	15	11	11	13	2	3	10	7	8	14	6	4	9
Lesser Redpoll	16	18	25	21	28	13	12	6	13	18	15	19	14	16	19	17
Crossbill	8	8	13	11	11	5	4	1	4	14	11	11	12	11	11	12
Scottish Crossbill	.	2	2	4	2	2	4	.	1	2	.	3	5	2	3	2
Bullfinch	6	8	18	17	15	14	16	4	13	13	10	10	10	15	10	11
Snow Bunting	.	1	.	.	.	.	.	.	.	.	.	.	1	.	1	.
Yellowhammer	26	27	39	32	33	33	33	7	23	23	21	24	27	35	33	28
Reed Bunting	17	17	22	15	12	13	13	5	14	14	15	17	20	20	20	20
Corn Bunting	7	7	6	5	4	2	3	.	.	3	2	4	2	4	1	2
Total number of Species	130	136	130	139	132	138	138	103	132	139	140	143	142	137	136	137

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