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BBWC Home > Contents > Appendix > Tables of population declines and increases from BBS
   
7.4 Tables of population declines and increases from BBS
1. BBS – UK alerts - 11 years
2. BBS – England alerts - 11 years
3. BBS – Scotland alerts - 11 years
4. BBS – Wales alerts - 11 years
5. BBS – UK alerts - 10 years
6. BBS – England alerts - 10 years
7. BBS – Scotland alerts - 10 years
8. BBS – Wales alerts - 10 years
9. BBS – UK alerts - 5 years
10. BBS – England alerts - 5 years
11. BBS – Scotland alerts - 5 years
12. BBS – Wales alerts - 5 years
13. BBS – UK population increases of >50%
14. BBS – England population increases of >50%
15. BBS – Scotland population increases of >50%
16. BBS – Wales population increases of >50%
17. BBS – Northern Ireland population increases of >50%
1. Table of declines >25% for BBS UK 1995-2006

Species Period
(yrs)		 Plots
(n)		 Change
(%)		 Lower
limit		 Upper
limit		 Alert Comment
Willow Tit 11 54 -66 -74 -54 >50  
Turtle Dove 11 182 -60 -66 -54 >50  
Wood Warbler 11 53 -58 -70 -44 >50  
Pied Flycatcher 11 41 -50 -63 -38 >25  
Yellow Wagtail 11 158 -44 -53 -34 >25  
Grey Partridge 11 227 -40 -49 -32 >25  
Curlew 11 453 -38 -43 -33 >25  
Whinchat 11 74 -38 -53 -18 >25  
Spotted Flycatcher 11 202 -37 -46 -23 >25  
Cuckoo 11 729 -33 -38 -27 >25  
Corn Bunting 11 138 -32 -45 -21 >25  
Starling 11 1631 -29 -34 -24 >25  
Swift 11 961 -26 -33 -18 >25  

2. Table of declines >25% for BBS England 1995-2006

Species Period
(yrs)		 Plots
(n)		 Change
(%)		 Lower
limit		 Upper
limit		 Alert Comment
Willow Tit 11 47 -66 -75 -57 >50  
Turtle Dove 11 179 -60 -65 -52 >50  
Cuckoo 11 584 -50 -53 -46 >25  
Yellow Wagtail 11 154 -43 -52 -33 >25  
Starling 11 1335 -38 -41 -34 >25  
Spotted Flycatcher 11 144 -37 -48 -21 >25  
Grey Partridge 11 202 -35 -44 -26 >25  
Tree Pipit 11 67 -35 -51 -11 >25  
Whinchat 11 30 -34 -60 -9 >25  
Lesser Redpoll 11 54 -34 -58 -6 >25  
Willow Warbler 11 866 -32 -37 -27 >25  
Linnet 11 909 -30 -35 -23 >25  
Swift 11 825 -28 -36 -18 >25  
Corn Bunting 11 132 -28 -40 -18 >25  

3. Table of declines >25% for BBS Scotland 1995-2006

Species Period
(yrs)		 Plots
(n)		 Change
(%)		 Lower
limit		 Upper
limit		 Alert Comment
Black-headed Gull 11 72 -69 -83 -45 >50  
Curlew 11 120 -50 -55 -44 >25  
Swift 11 46 -42 -59 -18 >25  
Kestrel 11 42 -40 -56 -17 >25  
Lapwing 11 86 -38 -50 -25 >25  
Siskin 11 54 -25 -43 -9 >25  

4. Table of declines >25% for BBS Wales 1995-2006

Species Period
(yrs)		 Plots
(n)		 Change
(%)		 Lower
limit		 Upper
limit		 Alert Comment
Starling 11 83 -46 -64 -23 >25  
Curlew 11 38 -45 -58 -30 >25  
Yellowhammer 11 38 -36 -53 -16 >25  
Cuckoo 11 57 -33 -47 -19 >25  
Garden Warbler 11 53 -29 -46 -5 >25  
Willow Warbler 11 152 -27 -37 -14 >25  
Coal Tit 11 68 -26 -46 -1 >25  
Wheatear 11 50 -25 -43 -8 >25  

1. Table of declines >25% for BBS UK 1996-2006

Species Period
(yrs)		 Plots
(n)		 Change
(%)		 Lower
limit		 Upper
limit		 Alert Comment
Willow Tit 10 53 -64 -72 -51 >50  
Turtle Dove 10 184 -58 -63 -51 >50  
Wood Warbler 10 53 -53 -67 -36 >50  
Pied Flycatcher 10 41 -49 -61 -37 >25  
Yellow Wagtail 10 157 -43 -52 -33 >25  
Grey Partridge 10 230 -38 -47 -30 >25  
Whinchat 10 73 -38 -53 -18 >25  
Curlew 10 460 -36 -40 -31 >25  
Spotted Flycatcher 10 206 -35 -42 -21 >25  
Cuckoo 10 731 -29 -35 -24 >25  
Great Black-backed Gull 10 101 -28 -43 -2 >25  
Starling 10 1665 -28 -32 -23 >25  
Corn Bunting 10 138 -26 -39 -16 >25  

2. Table of declines >25% for BBS England 1996-2006

Species Period
(yrs)		 Plots
(n)		 Change
(%)		 Lower
limit		 Upper
limit		 Alert Comment
Willow Tit 10 46 -63 -72 -54 >50  
Turtle Dove 10 181 -57 -63 -50 >50  
Nightingale 10 30 -47 -61 -31 >25  
Cuckoo 10 582 -46 -49 -42 >25  
Yellow Wagtail 10 153 -42 -51 -32 >25  
Starling 10 1359 -36 -39 -32 >25  
Lesser Redpoll 10 55 -35 -60 -9 >25  
Spotted Flycatcher 10 146 -34 -44 -20 >25  
Whinchat 10 30 -32 -58 -9 >25  
Grey Partridge 10 205 -31 -41 -23 >25  
Willow Warbler 10 873 -31 -36 -26 >25  
Tree Pipit 10 67 -30 -47 -10 >25  
Linnet 10 925 -26 -31 -19 >25  
Swift 10 840 -25 -32 -19 >25  

3. Table of declines >25% for BBS Scotland 1996-2006

Species Period
(yrs)		 Plots
(n)		 Change
(%)		 Lower
limit		 Upper
limit		 Alert Comment
Black-headed Gull 10 72 -63 -79 -39 >50  
Curlew 10 120 -47 -53 -41 >25  
Kestrel 10 42 -34 -50 -12 >25  
Lapwing 10 87 -34 -47 -20 >25  
Great Black-backed Gull 10 37 -33 -49 -8 >25  
Swift 10 48 -33 -53 -13 >25  
Siskin 10 55 -30 -48 -15 >25  

4. Table of declines >25% for BBS Wales 1996-2006

Species Period
(yrs)		 Plots
(n)		 Change
(%)		 Lower
limit		 Upper
limit		 Alert Comment
Curlew 10 39 -43 -55 -29 >25  
Starling 10 85 -41 -61 -20 >25  
Goldcrest 10 83 -38 -56 -7 >25  
Cuckoo 10 59 -32 -46 -21 >25  
Yellowhammer 10 38 -32 -48 -12 >25  
Swift 10 68 -30 -48 -4 >25  
Garden Warbler 10 55 -28 -45 -7 >25  
Whitethroat 10 77 -26 -39 -12 >25  
Willow Warbler 10 157 -26 -36 -14 >25  

1. Table of declines >25% for BBS UK 2001-2006

Species Period
(yrs)		 Plots
(n)		 Change
(%)		 Lower
limit		 Upper
limit		 Alert Comment
Turtle Dove 5 157 -40 -46 -32 >25  
Willow Tit 5 47 -36 -51 -21 >25  
Great Black-backed Gull 5 106 -28 -40 -9 >25  

2. Table of declines >25% for BBS England 2001-2006

Species Period
(yrs)		 Plots
(n)		 Change
(%)		 Lower
limit		 Upper
limit		 Alert Comment
Turtle Dove 5 155 -40 -48 -31 >25  
Willow Tit 5 40 -36 -52 -19 >25  
Redshank 5 58 -27 -38 -7 >25  

3. Table of declines >25% for BBS Scotland 2001-2006

Species Period
(yrs)		 Plots
(n)		 Change
(%)		 Lower
limit		 Upper
limit		 Alert Comment
Great Black-backed Gull 5 38 -35 -47 -14 >25  
Curlew 5 110 -31 -40 -24 >25  
Mallard 5 96 -26 -37 -17 >25  
Red Grouse 5 43 -26 -44 -6 >25  

4. Table of declines >25% for BBS Wales 2001-2006

Species Period
(yrs)		 Plots
(n)		 Change
(%)		 Lower
limit		 Upper
limit		 Alert Comment
Goldcrest 5 93 -31 -45 -16 >25  
Curlew 5 37 -26 -40 -10 >25  
Swift 5 77 -26 -41 -11 >25  
Linnet 5 106 -26 -40 -8 >25  

 
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This report should be cited as:
Baillie, S.R., Marchant, J.H., Leech, D.I., Joys, A.C., Noble, D.G.,
Barimore, C., Grantham, M.J., Risely, K. & Robinson, R.A. (2009).
Breeding Birds in the Wider Countryside: their conservation status 2008.
BTO Research Report No. 516. BTO, Thetford. (http://www.bto.org/birdtrends)

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