Species quick links ---------------------------------- Help ---------------------------------- Mute Swan Greylag Goose Canada Goose Shelduck Mallard Tufted Duck Goosander Red Grouse Red-legged Partridge Grey Partridge Pheasant Red-throated Diver Little Grebe Great Crested Grebe Cormorant Grey Heron Hen Harrier Sparrowhawk Buzzard Kestrel Merlin Hobby Peregrine Falcon Moorhen Coot Oystercatcher Ringed Plover Golden Plover Lapwing Snipe Curlew Woodcock Redshank Common Sandpiper Stock Dove Wood Pigeon Turtle Dove Collared Dove Cuckoo Barn Owl Little Owl Tawny Owl Nightjar Swift Kingfisher Green Woodpecker G. Spotted Woodpecker L. Spotted Woodpecker Woodlark Skylark Swallow Sand Martin House Martin Tree Pipit Meadow Pipit Yellow Wagtail Grey Wagtail Pied Wagtail Dipper Dunnock Wren Robin Nightingale Redstart Whinchat Stonechat Wheatear Ring Ouzel Blackbird Song Thrush Mistle Thrush Grasshopper Warbler Sedge Warbler Reed Warbler Blackcap Garden Warbler Lesser Whitethroat Whitethroat Wood Warbler Chiffchaff Willow Warbler Goldcrest Spotted Flycatcher Pied Flycatcher Long-tailed Tit Marsh Tit Willow Tit Coal Tit Blue Tit Great Tit Nuthatch Treecreeper Jay Magpie Jackdaw Rook Carrion Crow Hooded Crow Raven Starling House Sparrow Tree Sparrow Chaffinch Greenfinch Goldfinch Siskin Linnet Lesser Redpoll Bullfinch Yellowhammer Reed Bunting Corn Bunting

BBWC Home > Contents > Appendix > Tables of alerts and population increases from CBC/BBS     7.1 Tables of alerts and population increases from CBC/BBS     1a. CBC/BBS UK alerts- 35 years 1b. CBC/BBS England alerts - 35 years 2a. CBC/BBS UK alerts - 25 years 2b. CBC/BBS England alerts- 25 years 3a. CBC/BBS UK alerts - 10 years 3b. CBC/BBS England alerts - 10 years 4a. CBC/BBS UK alerts - 5 years 4b. CBC/BBS England alerts - 5 years 5a. CBC/BBS UK population increases of >50% - 35 years 5b. CBC/BBSEngland population increases of >50% - 35 years   1a. Table of population alerts for CBC/BBS UK 1967-2002 Species Period (yrs) Plots (n) Change (%) Lower limit Upper limit Alert Comment Corn Bunting 35 55 -87 -93 -79 >50   Grey Partridge 35 106 -86 -91 -81 >50   Spotted Flycatcher 35 111 -85 -90 -78 >50   Turtle Dove 35 99 -77 -87 -65 >50   Willow Tit 35 42 -77 -90 -60 >50   Yellow Wagtail 35 61 -67 -86 -30 >50   Whitethroat 35 340 -64 -75 -53 >50   Marsh Tit 35 81 -63 -75 -49 >50   Yellowhammer 35 355 -54 -64 -42 >50   Bullfinch 35 230 -53 -62 -44 >50   Song Thrush 35 516 -51 -58 -44 >50   Dunnock 35 538 -38 -45 -28 >25   Mistle Thrush 35 354 -36 -46 -21 >25   Reed Bunting 35 156 -34 -49 -15 >25   1b. Table of population alerts for CBC/BBS England 1967-2002 Species Period (yrs) Plots (n) Change (%) Lower limit Upper limit Alert Comment Tree Sparrow 35 77 -97 -99 -94 >50   Lesser Redpoll 35 41 -90 -97 -78 >50   Grey Partridge 35 94 -87 -91 -84 >50   Spotted Flycatcher 35 87 -85 -90 -78 >50   Corn Bunting 35 53 -85 -94 -71 >50   Tree Pipit 35 41 -80 -90 -64 >50   Starling 35 380 -80 -86 -73 >50   Willow Tit 35 39 -78 -88 -62 >50   Turtle Dove 35 99 -77 -86 -65 >50   Linnet 35 294 -68 -76 -60 >50   Yellow Wagtail 35 60 -66 -83 -31 >50   Whitethroat 35 297 -64 -74 -52 >50   Marsh Tit 35 75 -62 -74 -46 >50   Skylark 35 348 -60 -68 -52 >50   Willow Warbler 35 346 -58 -70 -45 >50   Cuckoo 35 226 -56 -68 -43 >50   Yellowhammer 35 310 -54 -63 -43 >50   Song Thrush 35 416 -53 -62 -46 >50   Bullfinch 35 192 -52 -64 -41 >50   Dunnock 35 450 -40 -49 -28 >25   Meadow Pipit 35 101 -39 -73 -3 >25   Mistle Thrush 35 295 -39 -49 -25 >25   Reed Bunting 35 127 -38 -55 -13 >25     2a. Table of population alerts for CBC/BBS UK 1977-2002 Species Period (yrs) Plots (n) Change (%) Lower limit Upper limit Alert Comment Grey Partridge 25 118 -88 -91 -83 >50   Corn Bunting 25 63 -88 -94 -81 >50   Spotted Flycatcher 25 124 -81 -87 -74 >50   Willow Tit 25 43 -80 -90 -63 >50   Turtle Dove 25 112 -77 -87 -68 >50   Yellow Wagtail 25 73 -66 -81 -42 >50   Yellowhammer 25 443 -53 -61 -45 >50   Bullfinch 25 270 -52 -61 -42 >50   Lapwing 25 219 -51 -63 -37 >50   Red-legged Partridge 25 155 -48 -65 -28 >25   Reed Bunting 25 179 -48 -57 -37 >25   Mistle Thrush 25 443 -37 -45 -26 >25   Marsh Tit 25 91 -36 -51 -18 >25   Song Thrush 25 646 -33 -43 -25 >25   Dunnock 25 677 -30 -39 -22 >25   Lesser Whitethroat 25 122 -27 -44 -1 >25   2b. Table of population alerts for CBC/BBS England 1977-2002 Species Period (yrs) Plots (n) Change (%) Lower limit Upper limit Alert Comment Lesser Redpoll 25 40 -97 -99 -94 >50   Tree Sparrow 25 75 -96 -99 -93 >50   Grey Partridge 25 105 -88 -92 -85 >50   Corn Bunting 25 61 -88 -95 -78 >50   Willow Tit 25 40 -82 -91 -70 >50   Tree Pipit 25 44 -81 -89 -68 >50   Spotted Flycatcher 25 96 -81 -86 -73 >50   Turtle Dove 25 111 -78 -87 -68 >50   Starling 25 491 -76 -81 -68 >50   House Sparrow 25 377 -69 -77 -58 >50   Yellow Wagtail 25 71 -64 -82 -36 >50   Skylark 25 444 -61 -66 -56 >50   Cuckoo 25 283 -56 -66 -46 >50   Yellowhammer 25 387 -55 -61 -48 >50   Linnet 25 365 -54 -63 -42 >50   Willow Warbler 25 425 -53 -63 -41 >50   Bullfinch 25 221 -53 -62 -42 >50   Reed Bunting 25 143 -52 -64 -42 >50   Red-legged Partridge 25 153 -49 -65 -29 >25   Meadow Pipit 25 128 -46 -69 -28 >25   Lapwing 25 178 -45 -63 -31 >25   Mistle Thrush 25 367 -41 -47 -30 >25   Song Thrush 25 515 -38 -47 -29 >25   Marsh Tit 25 84 -34 -51 -15 >25   Dunnock 25 564 -33 -43 -21 >25