Totals of individuals counted in London



These figures are totals of the maximum counts recorded from each square in a given year. The maximum count is calculated for each species separately and is based on all birds seen and heard, including those in flight. These figures provide a useful indication of the relative abundance of different species, although they do not take account of differences in detectability between species. They do not provide measure of absolute abundance because BBS surveys do not detect all of the birds present in a particular square. For comparative purposes the data can be used to calculate the mean count per square by dividing the species totals in the table 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 abundance 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 34 36 42 44 57 61 59 53 58 61 89 91 104 118 104 110
Mute Swan 5 7 16 19 73 88 25 32 82 37 88 25 52 33 133 192
Whooper Swan . 20 . . . . . . . . . . . . . .
Greylag Goose 2 . . . 4 2 . 2 1 . 10 7 7 10 36 16
Feral/hybrid Goose . . . . 3 8 . . . . 9 2 6 8 2 20
Bar-headed Goose . 1 . . . . . . . . . . . . . .
Canada Goose 10 66 76 104 249 272 215 127 194 233 290 321 320 397 465 484
Hawaian Goose . . . . 3 4 . . . . . . . . . .
Barnacle Goose . . . . 1 . . . . . . . 1 . . .
Egyptian Goose . . . . . . . . . . 8 4 7 7 16 8
Shelduck 8 . . 1 . . 4 . . 2 3 2 1 4 . 5
Mandarin . 1 . 3 4 4 3 4 8 5 12 . 4 8 2 5
Wigeon . . . . . . 6 . . . 2 . . . . .
Gadwall . . . . . . . 2 . 2 2 7 . . . 7
Teal . . . . 2 . . . . 2 . . . . 1 .
Mallard 123 228 157 186 349 319 246 233 243 347 476 402 460 493 420 463
Feral/hybrid mallard type . . . . . . . . 3 1 7 2 2 5 1 3
Shoveler 1 . 2 . . . . . . . 2 . 2 . . .
Red-crested Pochard . . . . . . . . 2 3 . . . . 1 .
Pochard 1 . 2 . 3 4 4 6 2 3 12 11 8 5 8 24
Tufted Duck 10 37 39 31 83 112 136 44 114 130 36 50 112 120 57 96
Goosander . . 1 . . . . . . 2 . . . . . .
Ruddy Duck . . 6 . 3 . . 9 1 3 3 5 8 . 4 .
Red-legged Partridge 2 . 4 2 2 2 . . 5 4 4 10 4 4 3 1
Grey Partridge . . . . . . . . . . . 2 . . . .
Pheasant 7 6 7 9 11 11 13 10 22 12 26 16 20 59 36 36
Peafowl . . . . . . . . . . 2 . 2 . . .
Little Grebe 2 . . 2 1 . . . 1 . 2 7 4 . . 2
Great Crested Grebe 1 5 4 7 7 4 1 6 5 12 15 6 16 17 18 22
Cormorant 2 11 28 67 43 39 37 42 54 85 103 122 124 141 118 101
Little Egret . . . . . . . . . . . . . 3 . 1
Grey Heron 17 22 31 27 25 27 24 26 33 61 48 49 77 67 57 52
Red Kite . . . . . 1 . . . . . . . . 1 .
Sparrowhawk 2 5 2 13 6 10 9 10 7 12 11 9 12 16 12 13
Buzzard . . . . . . . . . . . . . . 1 2
Kestrel 14 8 14 12 14 15 14 17 14 13 20 15 19 23 19 14
Hobby . . . . . 2 . . . 1 . . 1 1 . 1
Peregrine . . . . . . . . . . . . . . . 1
Moorhen 21 22 19 28 41 45 54 36 68 56 92 83 103 128 131 117
Coot 28 23 50 38 88 65 67 103 82 88 196 207 273 223 184 246
Oystercatcher . . . . . . . . . . 1 2 . . 1 .
Little Ringed Plover . 1 . . . 6 8 . . . . . . . . .
Ringed Plover 1 . . . . . . 1 31 . . . 1 . . .
Lapwing 7 45 7 17 8 2 17 1 1 4 15 3 5 26 12 12
Dunlin . . . . . . . . . . . 1 . . . .
Snipe . . . . . . . . . . . . . 1 . .
Whimbrel . . . 1 . . . . . . . . . . . .
Curlew . . . . . . . . 1 . . . . . 1 .
Common Sandpiper . 1 1 . 2 1 . . . . . 1 . . . .
Redshank 6 . . . . . 4 3 2 . . . . . . .
Black-headed Gull 58 54 95 30 46 52 102 35 50 185 55 112 284 139 166 119
Common Gull 3 . 11 . 3 22 9 5 10 17 30 31 27 75 20 18
Lesser Black-backed Gull 9 8 13 92 60 87 41 68 78 93 96 77 109 157 131 177
Herring Gull 3 6 16 38 46 19 28 122 79 51 120 126 134 145 168 472
Great Black-backed Gull . 1 . 4 2 . 3 1 2 3 3 3 1 1 5 2
Common Tern . 4 12 11 13 13 5 14 27 16 20 32 27 33 23 23
Feral Pigeon 931 1221 1633 2068 2254 2770 2174 1731 2215 2364 2959 3134 3186 3738 2831 3197
Stock Dove 9 10 7 11 19 31 15 10 40 25 29 25 30 52 44 38
Woodpigeon 558 603 1052 913 1414 1428 1527 1186 1375 1631 2657 2562 2630 3190 2877 2786
Collared Dove 138 161 177 206 215 236 202 195 193 213 332 343 387 407 414 415
Turtle Dove . . 1 . . . . . . . . . . 2 . .
1294 . . . . . . . . . . . 0 . . . .
Ring-necked Parakeet . 16 3 24 61 89 42 31 68 332 279 241 375 570 438 479
Cuckoo 6 4 5 3 6 8 5 4 . 3 3 5 9 4 3 2
Little Owl . . . . . . . . 1 2 1 . . . 1 2
Tawny Owl . . . . . . 1 1 . . . . . 1 . 3
Swift 325 370 484 569 854 700 656 416 521 793 995 961 977 897 972 1065
Kingfisher . 1 1 . 3 3 1 . . . 2 1 5 2 . 2
Green Woodpecker 14 15 26 19 36 39 50 31 51 63 62 67 78 83 95 82
Great Spotted Woodpecker 14 25 25 27 51 38 44 35 46 59 75 101 117 125 139 137
Lesser Spotted Woodpecker 1 . . 1 . . . . . . . 5 1 . . 1
Skylark 50 30 23 23 32 101 40 31 46 88 70 56 44 67 62 51
Sand Martin . . . . . 1 1 . 3 1 6 5 41 36 31 15
Swallow 14 8 38 47 36 52 15 18 62 69 57 36 202 107 47 69
House Martin 53 90 91 120 107 41 49 38 74 177 128 103 261 136 114 96
Tree Pipit . . . . . . 2 1 . . . 1 1 . . 1
Meadow Pipit 25 1 . . . 3 2 . 2 . 24 17 25 30 17 12
Yellow Wagtail 2 1 . . 1 . . . . . 4 . . . . .
Grey Wagtail 4 2 5 2 3 1 1 4 10 24 9 12 7 10 12 15
Pied Wagtail 2 14 11 17 23 23 31 31 35 48 50 58 55 61 73 54
Wren 253 257 245 246 358 469 486 475 540 650 834 857 838 1058 1002 1017
Dunnock 85 71 105 120 103 153 159 118 149 184 220 198 259 283 248 262
Robin 193 199 259 244 288 391 446 389 468 515 753 761 877 1021 1035 1018
Black Redstart . . . . 1 . . . . . . . 1 1 . .
Wheatear . . . . . . 3 1 3 4 2 . 1 2 . 5
Ring Ouzel . . . . . . . . . . . . 1 . . .
Blackbird 677 603 720 693 925 1006 1043 954 1100 1164 1670 1596 1705 1905 1709 1777
Fieldfare . . . . 1 . 1 . . . . . . 1 . .
Song Thrush 78 137 103 77 104 115 123 91 160 137 181 180 213 214 229 188
Redwing . . . . . . 11 . . . 1 1 . . . .
Mistle Thrush 40 48 44 37 78 66 80 65 51 67 96 103 103 102 98 99
Cettis Warbler . . . . . . . . . . . . 10 . . .
Grasshopper Warbler . . . . . . . . 1 . . . . 1 . .
Sedge Warbler 9 . 3 1 1 3 2 1 2 10 4 5 1 9 4 1
Reed Warbler 51 . . 1 5 . 3 1 2 2 2 6 7 8 8 9
Blackcap 35 38 53 52 76 89 93 64 115 111 166 164 178 185 198 274
Garden Warbler 4 6 5 5 3 7 4 6 7 9 9 12 5 7 6 9
Lesser Whitethroat 2 . 3 2 4 2 5 1 5 4 8 3 5 9 10 8
Whitethroat 9 9 20 34 46 34 25 39 39 39 76 70 70 88 84 101
Wood Warbler 1 . . . . . . . . . . . . . 1 .
Chiffchaff 27 29 35 40 60 46 41 39 60 84 123 93 65 159 166 146
Willow Warbler 17 32 32 40 39 34 17 13 13 13 16 18 22 19 25 25
Goldcrest 7 6 9 8 13 19 13 16 31 38 42 51 30 55 66 47
Firecrest . . . . . . . . . . . . . . . 1
Spotted Flycatcher 1 . 3 2 3 3 1 . . . . . . . 2 .
Long-tailed Tit 27 26 22 35 38 55 70 48 48 85 86 110 130 151 141 197
Blue Tit 306 261 411 393 606 742 727 617 715 818 1087 1310 1431 1530 1231 1173
Great Tit 110 123 137 145 224 323 312 299 312 414 520 605 738 804 742 770
Coal Tit 11 8 7 15 15 12 21 13 27 17 28 25 41 35 26 58
Willow Tit . 1 . . . . . . . . 3 . . . . .
Marsh Tit . . . . . . . . 4 1 . . 5 1 2 1
Nuthatch 9 7 10 11 11 16 11 11 13 21 16 22 33 32 39 46
Treecreeper 3 3 2 1 3 1 1 2 . 2 6 5 4 4 9 5
Jay 36 34 43 49 47 50 59 58 72 71 92 113 117 142 137 123
Magpie 199 248 288 315 440 490 484 388 414 459 660 660 750 1032 868 908
Jackdaw . 9 10 12 43 35 48 30 45 69 78 74 89 127 173 194
Rook . 18 7 . 17 22 . 19 10 20 2 95 14 84 13 31
Carrion Crow 318 455 755 526 894 1033 953 919 1120 1144 1442 1546 1720 2241 2038 1958
Starling 2088 1988 2396 2820 3086 3474 3210 2466 2883 3405 3442 3457 3657 3893 2925 3188
House Sparrow 2110 2128 2587 2285 2510 2090 1557 1178 992 1277 1753 1609 1740 1801 1438 1451
Tree Sparrow . 1 . . . . . . . . . . 2 1 5 .
Chaffinch 74 68 92 102 115 144 166 130 203 244 315 301 395 443 475 422
Brambling . . . . . . . . . 2 . . . . . .
Greenfinch 95 80 122 122 131 142 155 179 226 260 393 434 540 592 527 473
Goldfinch 46 26 41 41 65 51 63 59 62 132 110 179 201 319 296 284
Siskin . . . . . . . . . . . . . 1 . .
Linnet 44 21 26 26 33 43 23 25 16 56 63 33 18 52 26 13
Lesser Redpoll 2 1 . 1 12 . 1 . 3 . 14 . 1 . . .
Bullfinch 8 4 8 6 . 7 7 2 6 12 5 8 10 6 2 6
Yellowhammer 11 6 9 7 9 16 9 4 21 17 20 9 5 17 11 10
Reed Bunting 12 1 2 3 2 . 2 3 3 4 5 12 8 5 1 5
Corn Bunting 1 . . . . 1 . . . . . . . . . .
Total number of Species 78 75 75 74 84 80 83 78 84 84 92 89 95 91 89 92

 


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