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 (less 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
Total No squares surveyed 34 36 42 44 57 61 59 53 58 61 89 91 102 118
Mute Swan 5 7 16 19 73 88 25 32 82 37 88 25 52 33
Whooper Swan . 20 . . . . . . . . . . . .
Greylag Goose 2 . . . 4 2 . 2 1 . 10 7 7 10
Feral/hybrid Goose . . . . 3 8 . . . . 9 2 6 8
Canada Goose 10 66 76 104 249 272 215 127 194 233 290 321 320 397
Barnacle Goose . . . . 1 . . . . . . . 1 .
Egyptian Goose . . . . . . . . . . 8 4 7 7
Shelduck 8 . . 1 . . 4 . . 2 3 2 1 4
Mandarin . 1 . 3 4 4 3 4 8 5 12 . 4 8
Wigeon . . . . . . 6 . . . 2 . . .
Gadwall . . . . . . . 2 . 2 2 7 . .
Teal . . . . 2 . . . . 2 . . . .
Mallard 123 228 157 186 349 319 246 233 243 347 476 402 460 493
Feral/hybrid mallard type . . . . . . . . 3 1 7 2 2 5
Shoveler 1 . 2 . . . . . . . 2 . 2 .
Red-crested Pochard . . . . . . . . 2 3 . . . .
Pochard 1 . 2 . 3 4 4 6 2 3 12 11 8 5
Tufted Duck 10 37 39 31 83 112 136 44 114 130 36 50 112 120
Goosander . . 1 . . . . . . 5 . . . .
Ruddy Duck . . 6 . 3 . . 9 1 3 3 5 8 .
Red-legged Partridge 2 . 4 2 2 2 . . 5 4 4 10 4 4
Grey Partridge . . . . . . . . . . . 2 . .
Pheasant 7 6 7 9 11 11 13 10 22 12 26 16 20 59
Little Grebe 2 . . 2 1 . . . 1 . 2 7 4 .
Great Crested Grebe 1 5 4 7 7 4 1 6 5 12 15 6 16 17
Cormorant 2 11 28 67 43 39 37 42 54 85 103 129 124 141
Little Egret . . . . . . . . . . . . . 3
Grey Heron 17 22 31 27 25 27 24 26 33 61 48 49 77 67
Red Kite . . . . . 1 . . . . . . . .
Sparrowhawk 2 5 2 13 6 10 9 10 7 12 11 9 12 16
Kestrel 14 8 14 12 14 15 14 17 14 13 20 15 18 23
Hobby . . . . . 2 . . . 1 . . 1 1
Moorhen 21 22 19 28 41 45 54 36 68 56 92 83 103 128
Coot 28 23 50 38 88 65 67 103 82 88 196 222 273 223
Oystercatcher . . . . . . . . . . 1 2 . .
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
Dunlin . . . . . . . . . . . 1 . .
Snipe . . . . . . . . . . . . . 1
Whimbrel . . . 1 . . . . . . . . . .
Curlew . . . . . . . . 1 . . . . .
Redshank 6 . . . . . 4 3 2 . . . . .
Common Sandpiper . 1 1 . 2 1 . . . . . 1 . .
Black-headed Gull 58 54 95 30 46 52 102 35 50 185 55 112 284 139
Common Gull 3 . 11 . 3 22 9 5 10 17 30 34 27 75
Lesser Black-backed Gull 9 8 13 92 60 87 41 68 78 93 96 77 109 157
Herring Gull 3 6 16 38 46 19 28 122 79 51 120 126 134 145
Great Black-backed Gull . 1 . 4 2 . 3 1 2 3 3 3 1 1
Common Tern . 4 12 11 13 13 5 14 27 16 20 32 27 33
Feral Pigeon 931 1221 1633 2068 2254 2770 2174 1731 2215 2364 2960 3198 3112 3738
Stock Dove 9 10 7 11 19 31 15 10 40 25 29 25 30 52
Woodpigeon 558 603 1052 913 1414 1428 1527 1186 1375 1631 2659 2574 2613 3190
Collared Dove 138 161 177 206 215 236 202 195 193 213 332 343 377 407
Turtle Dove . . 1 . . . . . . . . . . 2
Ring-necked Parakeet . 16 3 24 61 89 42 31 68 332 279 241 374 570
Cuckoo 6 4 5 3 6 8 5 4 . 3 3 5 9 4
Little Owl . . . . . . . . 1 2 1 . . .
Tawny Owl . . . . . . 1 1 . . . . . 1
Swift 325 370 484 569 854 700 656 408 521 793 995 961 966 897
Kingfisher . 1 1 . 3 3 1 . . . 2 1 5 2
Green Woodpecker 14 15 26 19 36 39 50 31 51 63 62 67 78 83
Great Spotted Woodpecker 14 25 25 27 51 38 44 35 46 59 75 101 117 125
Lesser Spotted Woodpecker 1 . . 1 . . . . . . . 5 1 .
Skylark 50 30 23 23 32 101 40 39 46 88 70 56 44 67
Sand Martin . . . . . 1 1 . 3 1 6 5 41 36
Swallow 14 8 38 47 36 52 15 18 62 69 57 36 202 107
House Martin 53 90 91 120 107 41 49 38 74 177 128 103 251 136
Tree Pipit . . . . . . 2 1 . . . 1 1 .
Meadow Pipit 25 1 . . . 3 2 . 2 . 24 17 25 30
Yellow Wagtail 2 1 . . 1 . . . . . 4 . . .
Grey Wagtail 4 2 5 2 3 1 1 4 10 24 9 12 7 10
Pied Wagtail 2 14 11 17 23 23 31 31 35 48 50 58 55 61
Wren 253 257 245 246 358 469 486 475 540 650 834 860 830 1058
Dunnock 85 71 105 120 103 153 159 118 149 184 220 202 253 283
Robin 193 199 259 244 288 391 446 389 468 515 754 763 853 1021
Black Redstart . . . . 1 . . . . . . . 1 1
Wheatear . . . . . . 3 1 3 4 2 . 1 2
Ring Ouzel . . . . . . . . . . . . 1 .
Blackbird 677 603 720 693 925 1006 1043 954 1100 1164 1670 1626 1693 1905
Fieldfare . . . . 1 . 1 . . . . . . 1
Song Thrush 78 137 103 77 104 115 123 91 160 137 181 180 206 214
Redwing . . . . . . 11 . . . 1 1 . .
Mistle Thrush 40 48 44 37 78 66 80 65 51 67 96 103 103 102
Cettis Warbler . . . . . . . . . . . . 10 .
Grasshopper Warbler . . . . . . . 1 1 . . . . 1
Sedge Warbler 9 . 3 1 1 3 2 1 2 10 4 5 1 9
Reed Warbler 51 . . 1 5 . 3 1 2 2 2 6 7 8
Blackcap 35 38 53 52 76 89 93 64 115 111 166 164 174 185
Garden Warbler 4 6 5 5 3 7 4 6 7 9 9 12 5 7
Lesser Whitethroat 2 . 3 2 4 2 5 1 5 4 8 3 5 9
Whitethroat 9 9 20 34 46 34 25 39 39 39 76 70 70 88
Wood Warbler 1 . . . . . . . . . . . . .
Chiffchaff 27 29 35 40 60 46 55 39 60 84 123 93 65 159
Willow Warbler 17 32 32 40 39 34 17 13 13 13 16 19 22 19
Goldcrest 7 6 9 8 13 19 13 16 31 38 42 51 27 55
Spotted Flycatcher 1 . 3 2 3 3 1 . . . . . . .
Long-tailed Tit 27 26 22 35 38 55 70 48 48 85 86 110 124 151
Marsh Tit . . . . . . . . 4 1 . . 5 1
Willow Tit . 1 . . . . . . . . 3 . . .
Coal Tit 11 8 7 15 15 12 21 13 27 17 28 25 41 35
Blue Tit 306 261 411 393 606 742 727 617 715 818 1087 1314 1405 1530
Great Tit 110 123 137 145 224 323 312 299 312 414 521 608 722 804
Nuthatch 9 7 10 11 11 16 11 11 13 21 16 22 33 32
Treecreeper 3 3 2 1 3 1 1 2 . 2 6 5 4 4
Jay 36 34 43 49 47 50 59 58 72 71 92 113 114 142
Magpie 199 248 288 315 440 490 484 388 414 459 660 660 734 1032
Jackdaw . 9 10 12 43 35 48 30 45 69 78 74 89 127
Rook . 18 7 . 17 22 . 19 10 20 2 95 9 84
Carrion Crow 318 455 755 526 894 1033 939 919 1120 1144 1442 1552 1700 2241
Starling 2088 1988 2396 2820 3086 3474 3210 2466 2883 3405 3447 3467 3674 3893
House Sparrow 2110 2128 2587 2285 2510 2090 1557 1178 992 1277 1758 1609 1741 1801
Tree Sparrow . 1 . . . . . . . . . . 2 1
Chaffinch 74 68 92 102 115 144 166 130 203 244 315 301 387 443
Brambling . . . . . . . . . 2 . . . .
Greenfinch 95 80 122 122 131 142 155 179 226 260 393 434 516 592
Goldfinch 46 26 41 41 65 51 63 59 62 132 110 179 192 319
Siskin . . . . . . . . . . . . . 1
Linnet 44 21 26 26 33 43 23 25 16 56 63 33 18 52
Lesser Redpoll 2 1 . 1 12 . 1 . 3 . 14 . 1 .
Bullfinch 8 4 8 6 . 7 7 2 6 12 5 8 10 6
Yellowhammer 11 6 9 7 9 16 9 4 21 17 20 9 5 17
Reed Bunting 12 1 2 3 2 . 2 3 3 4 5 12 8 5
Corn Bunting 1 . . . . 1 . . . . . . . .
Bar-headed Goose . 1 . . . . . . . . . . . .
Hawaian Goose . . . . 3 4 . . . . . . . .
Peafowl . . . . . . . . . . 2 . 2 .
Budgerigar . . . . . . . . . . . 0 . .
Total number of Species 78 75 75 74 84 80 83 79 84 84 92 89 95 91

 


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