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

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

• Key to species texts
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• Demographic trends

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• BirdTrack results

Source	Period (yrs)	Years	Plots (n)	Change (%)	Lower limit	Upper limit	Alert	Comment
CBC/BBS UK	43	1967-2010	75	-4	-31	51
	25	1985-2010	114	36	8	70
	10	2000-2010	169	11	-2	24
	5	2005-2010	188	22	10	39
CBC/BBS England	43	1967-2010	46	-12	-41	43		Small CBC sample
	25	1985-2010	67	21	-1	59		Small CBC sample
	10	2000-2010	97	-2	-14	12
	5	2005-2010	112	14	-1	32
BBS UK	15	1995-2010	157	19	4	33
	10	2000-2010	167	11	0	21
	5	2005-2010	188	22	11	36
BBS England	15	1995-2010	89	5	-11	21
	10	2000-2010	96	-1	-12	14
	5	2005-2010	112	14	1	31
BBS Wales	15	1995-2010	56	27	0	58
	10	2000-2010	58	24	1	51
	5	2005-2010	61	36	14	66

Variable	Period (yrs)	Years	Mean annual sample	Trend	Modelled in first year	Modelled in 2010	Change	Alert	Comment
Fledglings per breeding attempt	42	1968-2010	53	Linear increase	3.72 fledglings	5.37 fledglings	44.2%
Clutch size	42	1968-2010	49	Curvilinear	5.91 eggs	6.24 eggs	5.6%
Brood size	42	1968-2010	87	Curvilinear	5.15 chicks	5.63 chicks	9.3%
Nest failure rate at egg stage	42	1968-2010	74	Curvilinear	1.30% nests/day	0.37% nests/day	-71.5%
Nest failure rate at chick stage	42	1968-2010	53	Linear decline	1.27% nests/day	0.31% nests/day	-75.6%
Laying date	42	1968-2010	63	Curvilinear	May 21	May 8	-13 days