Number of 1km squares in which each species
was recorded in Wales



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 10
Total No squares surveyed 122 121 116 138 192 223 213 22 215 214 253 271 271 269 242 232 245
Mute Swan 3 4 4 5 9 10 13 1 16 12 16 15 10 14 12 19 10
Whooper Swan . . . . . . . . . . . . . . . . 1
Pink-footed Goose . . . . . . . . . 1 . . . . . . .
Greylag Goose 2 1 3 3 2 5 6 . 5 8 4 8 12 10 10 8 14
Feral/hybrid Goose . . . 1 . . . . . . 2 . 1 . 1 1 3
Canada Goose 3 9 9 6 11 16 22 1 21 20 36 32 40 41 36 38 38
Brent Goose . . . . . . . . . . . . 1 . . . 1
Shelduck 5 6 7 7 8 7 9 . 7 9 9 10 16 7 13 12 10
Mandarin . 1 . . 1 1 2 . 1 . 1 . 1 . 1 . .
Wigeon . 2 . 1 . . 1 . 1 . . . . . . . .
Gadwall . . . . 1 1 1 . 1 . . . . 1 1 . .
Teal 1 2 1 . 1 1 3 . 2 1 2 4 3 2 2 2 1
Mallard 38 40 32 42 61 73 65 7 77 57 77 86 87 79 73 72 64
Feral/hybrid mallard type . . . . . . . . . . . . 2 1 1 . 3
Pintail . . . . . 1 . . . . . . . . . . .
Shoveler 1 . . . . . . . . 1 . 1 1 2 1 . .
Red-crested Pochard . . . . 1 . 1 . . . . . . . . . .
Pochard . . . . . . 1 . 1 1 . 1 . 1 1 1 2
Tufted Duck 2 2 3 3 4 3 4 . 3 3 3 6 4 2 3 5 2
Eider . . . . . . . . . . . . . 1 . . .
Common Scoter . . 1 . . . . . . . . . . . . . .
Goldeneye . . . . . . . . . . . 1 . . . . .
Red-breasted Merganser 1 1 . 2 1 2 1 . 1 . 1 2 2 1 . 1 .
Goosander 6 3 4 5 8 4 4 1 6 6 7 8 6 6 5 7 8
Ruddy Duck . . . . 2 1 1 . 1 2 3 2 1 . . . .
Helmeted Guineafowl . . . . . . . . . . . 1 . . . . .
Red Grouse 1 . 2 1 4 7 4 1 5 5 4 5 4 3 5 4 2
Black Grouse . . . . . 1 1 . 2 . 2 . 1 . 2 2 .
Red-legged Partridge . . . 1 1 1 4 1 2 4 6 5 3 10 14 10 12
Grey Partridge 1 2 1 1 1 2 1 . 2 3 1 3 3 2 2 . 1
Quail . . . . 1 . . . . . 1 . . . . . .
Reeves Pheasant . . 1 . 2 . . . . . . . . . . . .
Pheasant 53 50 48 59 73 78 82 2 76 84 109 125 131 137 112 100 114
Golden Pheasant . . . . . . . . . 1 . . . . . . .
Peafowl . . . . . . . . . . 1 . . 2 1 2 2
Great Northern Diver . . . . . . . . . . . . . . . . 1
Little Grebe 2 1 . 1 3 3 4 . 3 6 5 8 5 5 8 7 6
Great Crested Grebe 1 1 1 1 3 1 4 . 1 2 1 3 3 4 2 2 2
Fulmar 2 3 2 2 4 4 3 . 9 6 6 7 6 3 5 4 6
Manx Shearwater . . . . . . . . 1 . . . . . . . .
Gannet . 1 1 1 1 2 1 . 3 2 3 2 5 2 2 2 1
Cormorant 5 10 13 9 23 21 19 4 22 19 25 22 25 17 20 26 22
Shag 1 1 2 1 1 2 . . 3 1 4 3 3 2 2 2 3
Little Egret . . . . 1 . . . 1 1 2 2 3 1 4 5 3
Grey Heron 21 25 26 35 41 48 46 2 47 54 53 58 48 51 47 40 48
Honey Buzzard . . . . . . . . . 1 . . . . . . .
Red Kite 8 7 7 5 6 12 9 1 15 14 24 31 33 26 26 35 40
Marsh Harrier . 1 . . . . . . . . . 1 . . . . .
Hen Harrier 1 1 1 2 . 1 1 . 2 4 2 1 4 2 3 2 1
Goshawk . 1 1 2 3 5 6 2 5 7 3 5 4 9 3 6 5
Sparrowhawk 10 10 12 13 33 21 19 . 23 25 16 25 30 33 21 21 18
Buzzard 80 78 75 86 113 150 151 10 155 142 160 177 181 191 160 147 152
Osprey . . . . . . . . 1 . 1 . . . . . .
Kestrel 17 15 14 18 24 27 22 . 26 22 26 35 31 31 23 12 20
Merlin 1 . . 2 1 . 3 . 4 3 1 . 1 . 2 1 .
Hobby 1 1 . 1 2 1 . . 3 1 . 1 1 3 2 2 1
Peregrine 11 6 8 3 9 8 8 . 5 4 14 16 7 8 10 5 4
Water Rail . . . . . . . . . . . 2 1 3 . 1 .
Spotted Crake . . . . . . . . . . . . 1 . . . .
Moorhen 13 10 12 16 23 27 22 1 18 17 29 29 20 27 21 20 17
Coot 6 6 5 4 6 9 12 . 9 11 11 12 11 9 12 10 10
Oystercatcher 4 4 6 7 7 9 7 . 10 11 9 11 14 12 11 10 11
Little Ringed Plover 1 . . 1 1 . . . 1 . . . . 1 . . .
Ringed Plover 1 1 1 1 2 3 1 1 2 3 2 1 1 2 2 1 2
Golden Plover . 1 . 2 2 3 . . . . . 1 1 2 3 4 2
Grey Plover . . . . . . . . . . . . 1 . . . .
Lapwing 24 14 16 15 14 16 17 . 15 14 14 20 19 16 15 12 12
Knot . . . . . . . . . . . . 1 . . . .
Sanderling . . . . . . . . . . 1 . . . . . .
Dunlin . 1 1 1 . . 3 . . 1 2 1 . 2 . 1 .
Snipe 4 5 6 2 2 6 4 . 9 7 6 3 6 3 7 2 4
Woodcock . . . . . . . . . . 1 1 . . . . .
Black-tailed Godwit . . . . . . . . . . 1 . 1 . . 1 .
Bar-tailed Godwit . . . . . . . . 1 . . . . . . . .
Whimbrel 3 5 3 2 2 3 2 . 3 . 1 3 2 2 6 9 4
Curlew 33 30 33 32 37 52 53 . 44 33 40 37 35 36 37 23 29
Common Sandpiper 2 3 4 5 3 3 7 1 2 2 5 5 3 2 6 1 5
Green Sandpiper 1 1 . . . . . . . . 1 . . . . . .
Spotted Redshank . . . . . . . . . . . 1 . . . . .
Greenshank . 1 . . . 1 . . . . . . 1 . 1 . .
Redshank 1 1 1 . 1 3 3 . 3 3 4 5 2 5 3 1 1
Turnstone . . . . 1 1 1 . . . 1 . . . . . .
Kittiwake . . . . . . . . . . 1 . . . 1 . 1
Black-headed Gull 17 14 13 13 22 24 23 1 19 17 16 15 16 17 21 13 11
Common Gull 2 1 5 2 3 4 4 . 4 4 4 1 4 6 5 3 2
Lesser Black-backed Gull 22 36 30 39 52 73 58 10 68 71 68 78 73 84 84 71 71
Herring Gull 36 35 35 46 67 84 85 11 90 83 95 116 114 119 104 105 109
Great Black-backed Gull 5 5 8 14 16 13 11 . 14 13 16 12 20 23 21 20 15
Sandwich Tern . 1 . 2 2 1 . . 1 1 3 3 3 2 2 . 3
Common Tern . . . . . . . . . 1 . . 1 . . . .
Roseate Tern . . . . 1 . . . . . . . . . . . .
Arctic Tern . . . . . . . . . . . . 1 . . . .
Guillemot . . . . . . . . 1 . . . . . 1 . 1
Razorbill . . . . 1 2 . . . . 2 3 . . 1 . 1
Black Guillemot 1 1 1 1 1 1 1 . 1 1 1 1 1 1 1 1 .
Feral Pigeon 15 14 21 25 31 32 36 8 37 31 39 43 40 40 40 39 36
Stock Dove 13 19 20 23 36 25 24 1 27 27 31 43 36 33 28 34 40
Woodpigeon 105 103 105 123 172 197 182 17 183 184 216 243 239 234 204 202 212
Collared Dove 35 27 31 40 66 71 63 8 62 68 88 85 95 98 91 88 91
Turtle Dove . . 1 . . . . . . 2 . . 1 . . . .
Cuckoo 52 37 51 47 64 72 58 4 60 46 63 60 70 49 61 46 62
Barn Owl . 1 . . 1 . 1 . . . 1 1 1 . . 1 .
Little Owl 3 1 2 4 4 4 7 1 2 1 1 4 . 4 2 4 3
Tawny Owl 7 5 6 7 11 11 7 1 10 2 7 11 6 9 12 8 9
Short-eared Owl . . . 1 . . . . 2 1 1 . . 1 . . .
Nightjar . . . . . 1 . . . . . . . . . . .
Swift 34 47 36 37 75 77 75 8 71 77 71 74 91 66 75 61 60
Kingfisher 2 2 1 6 3 2 3 . 4 7 4 5 2 3 1 6 3
Green Woodpecker 23 30 29 34 52 40 49 . 38 41 57 63 50 66 50 47 55
Great Spotted Woodpecker 26 36 28 38 56 62 57 4 63 63 79 102 86 118 103 102 116
Lesser Spotted Woodpecker . 2 3 . 2 3 1 . 2 2 1 2 . 2 . 1 3
Skylark 68 66 66 80 102 121 106 6 100 93 115 127 128 131 113 102 114
Sand Martin 4 5 9 8 7 13 9 3 11 7 12 13 9 9 11 9 14
Swallow 97 87 93 115 150 189 171 15 165 156 196 220 221 224 200 182 197
House Martin 48 54 57 57 85 103 98 8 90 91 90 98 111 91 95 80 83
Tree Pipit 25 18 25 27 40 43 41 5 33 27 33 35 39 34 32 23 43
Meadow Pipit 55 58 54 55 82 101 98 8 93 86 100 105 101 107 92 93 97
Rock Pipit 2 3 2 2 3 5 4 . 6 6 9 6 7 5 5 5 6
Yellow Wagtail 1 1 . 4 . 1 5 . 3 1 4 . 3 1 1 3 2
Grey Wagtail 21 23 15 12 23 28 24 3 24 23 29 29 33 28 34 33 25
Pied Wagtail 75 65 68 77 102 129 117 7 116 119 134 152 144 144 123 113 120
Dipper 2 6 6 7 10 9 8 1 6 5 9 9 5 7 8 11 20
Wren 114 111 103 121 178 208 202 18 204 196 226 249 249 245 220 209 213
Dunnock 79 80 77 99 142 159 140 12 145 154 179 196 186 191 179 167 182
Robin 107 108 106 123 174 196 197 18 194 191 227 250 244 239 222 206 214
Nightingale . 1 1 . . . . . . . 1 1 . . . . .
Redstart 45 43 42 48 60 63 58 3 58 49 58 59 65 67 55 59 72
Whinchat 17 13 15 13 24 18 21 4 18 19 19 23 22 25 21 13 15
Stonechat 11 13 11 14 23 33 34 . 37 40 46 62 53 58 57 39 33
Wheatear 32 34 33 28 45 66 54 1 54 50 58 68 70 55 62 52 58
Ring Ouzel 7 3 1 . 3 3 2 . 3 3 5 3 4 3 3 3 1
Blackbird 109 108 101 124 173 203 195 21 196 195 233 253 252 249 220 214 228
Fieldfare 2 3 . 3 1 . 2 . 3 5 1 1 3 . 1 . 2
Song Thrush 91 88 82 100 148 166 166 14 163 168 192 215 223 216 196 187 198
Redwing . . . . . . . . . 1 . 1 . . 1 . .
Mistle Thrush 55 51 50 66 100 116 105 10 113 97 115 122 123 122 113 102 113
Cettis Warbler . . . . 2 1 1 . 2 2 2 2 3 2 3 2 2
Grasshopper Warbler 11 7 14 8 20 8 10 1 11 15 14 13 16 16 14 15 24
Sedge Warbler 9 13 17 18 20 23 25 . 27 17 24 27 33 22 27 24 21
Marsh Warbler . . . 1 . . . . . . . . . . . . .
Reed Warbler 1 1 1 3 3 3 3 2 6 3 4 6 7 9 9 9 6
Blackcap 50 50 52 80 111 113 111 11 116 112 142 148 149 140 131 132 160
Garden Warbler 46 39 36 50 65 65 52 5 56 49 65 54 52 64 63 62 64
Lesser Whitethroat 8 8 6 5 11 9 11 . 10 8 14 10 10 14 11 12 12
Whitethroat 39 43 48 54 74 85 75 8 70 66 94 102 102 103 98 88 102
Dartford Warbler . . . . . . . . . . . 1 1 . 1 . .
Wood Warbler 26 16 19 23 28 22 25 3 21 11 21 18 21 18 13 19 15
Chiffchaff 64 67 68 89 132 115 110 12 123 147 171 175 163 173 167 148 168
Willow Warbler 103 103 98 115 166 183 162 12 150 151 185 185 184 188 172 161 190
Goldcrest 45 49 45 59 83 91 89 6 82 75 96 112 101 103 90 63 65
Firecrest . . . . . . . . . 1 1 . . 1 . . .
Spotted Flycatcher 16 22 15 21 22 30 32 2 20 20 26 27 32 22 19 18 16
Pied Flycatcher 24 22 19 24 25 31 26 . 27 21 21 21 16 17 14 17 26
Long-tailed Tit 34 39 32 31 58 64 65 4 57 49 56 82 62 74 76 57 80
Blue Tit 100 100 98 115 156 184 163 16 176 184 206 231 218 220 196 195 202
Great Tit 88 94 89 117 147 174 159 10 169 169 201 219 213 220 192 190 197
Coal Tit 41 35 36 55 75 73 67 5 91 70 79 87 86 82 75 89 100
Willow Tit 6 2 7 9 10 8 6 . 3 7 8 9 6 6 2 2 4
Marsh Tit 4 14 10 9 14 10 19 2 13 11 17 16 18 13 7 14 10
Nuthatch 33 37 39 54 66 59 60 3 80 62 75 97 80 86 72 86 95
Treecreeper 25 29 28 29 43 51 46 4 47 40 44 44 42 49 43 32 43
Woodchat Shrike . . . 1 . . . . . . . . . . . . .
Jay 41 25 36 52 70 62 70 8 67 71 85 88 93 89 85 81 94
Magpie 98 91 94 110 163 175 168 16 157 162 185 205 197 190 174 173 177
Chough 1 2 1 2 3 4 3 . 4 7 4 4 5 8 1 6 7
Jackdaw 74 75 75 92 133 143 140 12 138 137 164 176 174 180 156 146 161
Rook 53 50 49 55 71 95 86 5 85 76 89 87 95 86 88 69 90
Carrion Crow 114 111 108 132 185 214 200 19 206 200 237 255 254 254 225 221 228
Hooded Crow . . 1 . . . 1 . . . . . . . . . .
Carrion/Hooded (intermediate) . . . . . . . . . . . . . . . 1 .
Raven 51 41 51 53 77 72 94 3 84 90 103 120 112 122 98 87 112
Starling 63 56 48 65 99 101 95 13 82 78 95 89 91 89 72 71 67
House Sparrow 64 66 59 74 107 122 112 11 114 128 143 161 153 152 137 135 148
Tree Sparrow 2 1 3 6 5 4 4 . 6 4 4 4 6 2 3 2 2
Chaffinch 115 111 105 130 181 204 196 19 195 196 236 252 255 249 220 213 228
Brambling 1 . 1 1 . . . . . . 1 . . . . . .
Greenfinch 49 52 44 75 99 114 109 9 114 108 131 150 155 141 135 126 126
Goldfinch 62 64 60 81 109 121 123 8 132 118 150 177 142 158 149 142 154
Siskin 16 11 13 19 25 17 25 5 19 20 24 30 32 23 30 30 41
Linnet 55 53 49 72 95 98 96 4 97 90 118 119 111 98 89 92 104
Twite . . . . . . . . . . . . 1 . . . .
Lesser Redpoll 13 12 13 14 23 23 19 2 20 15 20 28 22 23 23 16 29
Crossbill 10 1 3 4 6 3 3 1 5 5 5 6 6 3 7 3 10
Bullfinch 43 34 41 48 48 45 54 3 60 63 88 97 66 69 64 64 62
Hawfinch . . . 1 . 2 1 . . . 2 1 1 . . . .
Yellowhammer 33 31 33 41 39 43 40 . 36 33 34 38 38 34 31 26 29
Reed Bunting 16 12 12 11 19 30 27 2 23 28 33 36 37 41 34 31 34
Corn Bunting . . . . . . 1 . . . . . . . . . .
Total number of Species 121 128 121 128 134 132 133 79 136 134 144 139 143 134 137 131 132

 


To go directly to the BBS homepage, click here
Any problems with this page e-mail: web.support@bto.org


BTO blue divider

BTO Home | JNCC Home | RSPB Home
The Breeding Bird Survey (BBS) monitors terrestrial birds throughout the UK to
provide information that underpins the conservation of species and habitats.
The BBS is organised by the BTO on behalf of BTO, JNCC and RSPB
Email: bbs@bto.org

BTO, The Nunnery, Thetford, Norfolk IP24 2PU, UK. Registered Charity Number 216652.
Terms and Conditions | Privacy Statement           © British Trust for Ornithology