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BBS population declines & increases
  1. BBS – UK alerts – 23 years
  2. BBS – England alerts – 23 years
  3. BBS – Scotland alerts – 23 years
  4. BBS – Wales alerts – 23 years
  5. BBS – Northern Ireland alerts – 23 years
  6. BBS – UK alerts – 10 years
  7. BBS – England alerts – 10 years
  8. BBS – Scotland alerts – 10 years
  9. BBS – Wales alerts – 10 years
  10. BBS – Northern Ireland alerts – 10 years
  11. BBS – UK alert – 5 years
  12. BBS – England alerts – 5 years
  13. BBS – Scotland alerts – 5 years
  14. BBS – Wales alerts – 5 years
  15. BBS – Northern Ireland alerts – 5 years
  16. BBS – UK population increases of >50% 23 years
  17. BBS – England population increases of >50% – 23 years
  18. BBS – Scotland population increases of >50% – 23 years   
  19. BBS – Wales population increases of >50% – 23 years
  20. BBS – Northern Ireland population increases of >50% – 23 years

1. Table of declines >25% for BBS UK 1995-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Turtle Dove 23 122 -95 -96 -93 >50  
Willow Tit 23 44 -82 -87 -75 >50  
Wood Warbler 23 52 -66 -78 -54 >50  
Grey Partridge 23 223 -64 -69 -57 >50  
Greenfinch 23 1848 -64 -66 -61 >50  
Little Owl 23 93 -62 -69 -54 >50  
Swift 23 1069 -58 -62 -53 >50  
Whinchat 23 78 -57 -69 -47 >50  
Starling 23 1843 -53 -56 -48 >50  
Spotted Flycatcher 23 190 -51 -60 -41 >50  
Curlew 23 540 -48 -54 -42 >25  
Lapwing 23 702 -43 -51 -38 >25  
Pied Flycatcher 23 40 -43 -70 -10 >25  
Redshank 23 90 -42 -60 -13 >25  
Yellow Wagtail 23 167 -42 -52 -31 >25  
Marsh Tit 23 152 -41 -49 -30 >25  
Peregrine 23 54 -39 -58 -16 >25  
Cuckoo 23 705 -38 -44 -32 >25  
Wheatear 23 372 -38 -47 -27 >25  
Kestrel 23 697 -35 -41 -28 >25  
Dipper 23 67 -33 -50 -12 >25  
Tawny Owl 23 98 -30 -43 -16 >25 Nocturnal species
Corn Bunting 23 146 -30 -42 -16 >25  
Mistle Thrush 23 1225 -28 -33 -23 >25  
Common Sandpiper 23 75 -26 -41 -10 >25  

2. Table of declines >25% for BBS England 1995-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Turtle Dove 23 120 -95 -96 -93 >50  
Willow Tit 23 39 -82 -87 -74 >50  
Cuckoo 23 534 -71 -74 -68 >50  
Spotted Flycatcher 23 131 -71 -77 -64 >50  
Grey Partridge 23 199 -62 -67 -55 >50  
Greenfinch 23 1563 -62 -64 -59 >50  
Little Owl 23 90 -61 -69 -51 >50  
Starling 23 1495 -61 -63 -58 >50  
Swift 23 921 -58 -62 -53 >50  
Tree Pipit 23 75 -56 -71 -34 >50  
Nightingale 23 33 -55 -69 -29 >50  
Dipper 23 32 -48 -71 -5 >25  
Whinchat 23 33 -47 -67 -32 >25  
Willow Warbler 23 963 -45 -51 -38 >25  
Grasshopper Warbler 23 41 -44 -63 -19 >25  
Redshank 23 64 -43 -57 -25 >25  
Yellow Wagtail 23 163 -41 -50 -32 >25  
Mistle Thrush 23 961 -41 -45 -37 >25  
Common Sandpiper 23 32 -40 -58 -15 >25  
House Martin 23 767 -40 -48 -30 >25  
Marsh Tit 23 138 -37 -46 -26 >25  
Yellowhammer 23 1095 -34 -39 -29 >25  
Sparrowhawk 23 300 -32 -39 -25 >25  
Curlew 23 355 -31 -40 -19 >25  
Wheatear 23 208 -31 -49 -5 >25  
Corn Bunting 23 139 -31 -43 -15 >25  
Lapwing 23 591 -30 -39 -21 >25  
Feral Pigeon/Rock Dove 23 600 -29 -38 -19 >25  
Tawny Owl 23 85 -27 -43 -7 >25 Nocturnal species
Garden Warbler 23 383 -27 -35 -18 >25  
Sedge Warbler 23 201 -26 -38 -10 >25  

3. Table of declines >25% for BBS Scotland 1995-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Greenfinch 23 109 -67 -75 -56 >50  
Kestrel 23 41 -61 -75 -40 >50  
Curlew 23 131 -59 -67 -50 >50  
Lapwing 23 89 -56 -66 -46 >50  
Swift 23 57 -52 -67 -30 >50  
Hooded Crow 23 55 -44 -56 -25 >25  
Oystercatcher 23 144 -39 -47 -29 >25  
Wheatear 23 90 -39 -50 -23 >25  
Rook 23 125 -34 -46 -12 >25  
Starling 23 169 -29 -42 -9 >25  

4. Table of declines >25% for BBS Wales 1995-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Swift 23 68 -72 -81 -60 >50  
Greenfinch 23 114 -71 -79 -61 >50  
Curlew 23 35 -69 -78 -58 >50  
Starling 23 83 -65 -77 -48 >50  
Yellowhammer 23 32 -64 -75 -54 >50  
Rook 23 83 -58 -71 -45 >50  
Goldcrest 23 94 -54 -68 -28 >50  
Wheatear 23 60 -48 -58 -33 >25  
Magpie 23 180 -43 -58 -23 >25  
Chaffinch 23 221 -38 -45 -28 >25  
Coal Tit 23 84 -32 -50 -3 >25  
Tree Pipit 23 37 -31 -52 -3 >25  
Green Woodpecker 23 49 -29 -48 -1 >25  
Whitethroat 23 95 -28 -42 -8 >25  

5. Table of declines >25% for BBS Northern Ireland 1995-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Greenfinch 23 47 -82 -88 -66 >50  
Skylark 23 32 -46 -61 -35 >25  

6. Table of declines >25% for BBS UK 2008-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Turtle Dove 10 59 -82 -88 -75 >50  
Greenfinch 10 2025 -67 -69 -66 >50  
Little Owl 10 84 -46 -55 -36 >25  
Swift 10 1152 -41 -46 -35 >25  
Wheatear 10 458 -35 -43 -26 >25  
Grey Partridge 10 209 -34 -42 -24 >25  
Lapwing 10 762 -33 -42 -26 >25  
Barn Owl 10 75 -31 -43 -16 >25  
Swallow 10 2611 -31 -33 -28 >25  
Moorhen 10 753 -28 -33 -23 >25  
Crossbill 10 79 -28 -43 -5 >25  
Grasshopper Warbler 10 108 -27 -43 -11 >25  
Chaffinch 10 3288 -27 -29 -26 >25  
Kestrel 10 782 -26 -31 -21 >25  

7. Table of declines >25% for BBS England 2008-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Turtle Dove 10 58 -81 -87 -75 >50  
Greenfinch 10 1723 -66 -67 -64 >50  
Willow Tit 10 30 -54 -69 -27 >50  
Little Owl 10 81 -50 -60 -39 >25  
Swift 10 995 -40 -46 -33 >25  
Grey Partridge 10 187 -36 -45 -26 >25  
Spotted Flycatcher 10 115 -36 -46 -24 >25  
Swallow 10 2004 -33 -35 -29 >25  
Wheatear 10 270 -33 -44 -18 >25  
Chaffinch 10 2568 -33 -35 -32 >25  
Lapwing 10 653 -30 -38 -23 >25  
Redshank 10 71 -30 -45 -13 >25  
Grasshopper Warbler 10 52 -30 -47 -3 >25  
Starling 10 1606 -29 -32 -24 >25  
Sparrowhawk 10 330 -28 -34 -21 >25  
Moorhen 10 699 -28 -32 -23 >25  
House Martin 10 836 -28 -33 -22 >25  
Collared Dove 10 1480 -27 -30 -24 >25  
Cuckoo 10 470 -27 -33 -21 >25  
Grey Heron 10 653 -26 -31 -19 >25 Non-breeders included
Barn Owl 10 73 -26 -37 -12 >25  

8. Table of declines >25% for BBS Scotland 2008-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Greenfinch 10 119 -68 -75 -61 >50  
Kestrel 10 39 -44 -60 -22 >25  
Lapwing 10 88 -39 -50 -23 >25  
Wheatear 10 101 -38 -47 -23 >25  
Swift 10 66 -30 -50 -2 >25  
Hooded Crow 10 58 -30 -43 -12 >25  
Stonechat 10 48 -29 -43 -13 >25  
Swallow 10 262 -28 -35 -19 >25  

9. Table of declines >25% for BBS Wales 2008-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Greenfinch 10 119 -78 -82 -74 >50  
Swift 10 69 -50 -60 -36 >25  
Rook 10 89 -50 -62 -38 >25  
Curlew 10 31 -44 -58 -28 >25  
Wheatear 10 70 -41 -53 -25 >25  
Chaffinch 10 252 -28 -34 -21 >25  

10. Table of declines >25% for BBS Northern Ireland 2008-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Greenfinch 10 44 -86 -89 -82 >50  
Lesser Redpoll 10 35 -53 -63 -36 >50  
Linnet 10 43 -52 -64 -36 >50  
Swallow 10 100 -33 -39 -26 >25  
Goldcrest 10 57 -30 -47 -4 >25  

11. Table of declines >25% for BBS UK 2013-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Greenfinch 5 1896 -47 -49 -45 >25  
Wheatear 5 459 -34 -39 -28 >25  
Crossbill 5 65 -33 -47 -17 >25  
Swallow 5 2688 -28 -30 -25 >25  
Swift 5 1123 -27 -33 -19 >25  

12. Table of declines >25% for BBS England 2013-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Greenfinch 5 1620 -46 -48 -44 >25  
Turtle Dove 5 32 -42 -58 -23 >25  
Wheatear 5 244 -40 -47 -33 >25  
Swallow 5 2033 -31 -34 -29 >25  
Lesser Redpoll 5 76 -31 -48 -13 >25  
Swift 5 963 -28 -35 -20 >25  
Nightingale 5 35 -28 -44 -10 >25  
Chaffinch 5 2629 -28 -29 -26 >25  

13. Table of declines >25% for BBS Scotland 2013-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Greenfinch 5 109 -43 -54 -30 >25  
Wheatear 5 113 -27 -36 -16 >25  
Feral Pigeon/Rock Dove 5 103 -26 -39 -11 >25  
Siskin 5 122 -26 -36 -15 >25  

14. Table of declines >25% for BBS Wales 2013-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Greenfinch 5 114 -58 -66 -48 >50  
Swift 5 71 -48 -58 -34 >25  
Wheatear 5 80 -39 -50 -29 >25  
Rook 5 94 -39 -50 -27 >25  
Chaffinch 5 280 -30 -35 -25 >25  
Redstart 5 105 -28 -35 -19 >25  
Tree Pipit 5 51 -26 -41 -7 >25  

15. Table of declines >25% for BBS Northern Ireland 2013-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Greenfinch 5 33 -71 -78 -62 >50  

16. Table of population increases for BBS UK 1995-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Jackdaw 23 1971 61 49 76    
Canada Goose 23 558 81 57 123    
Buzzard 23 1218 98 84 117    
Chiffchaff 23 1786 109 97 121    
Nuthatch 23 593 110 91 132    
Tree Sparrow 23 206 117 65 184    
Stonechat 23 173 118 72 182    
Great Spotted Woodpecker 23 1240 131 117 148    
Goldfinch 23 1928 155 140 170    
Greylag Goose 23 277 169 46 412    
Blackcap 23 1864 175 159 193    
Barn Owl 23 54 251 158 426    
Gadwall 23 48 253 91 526    
Cetti's Warbler 23 33 417 113 3096    
Mandarin 23 36 457 239 1172    
Red Kite 23 186 1738 1077 3236    
Ring-necked Parakeet 23 92 1776 882 9518    
Little Egret 23 57 2399 870 117671    

17. Table of population increases for BBS England 1995-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Tree Sparrow 23 158 58 25 99    
Canada Goose 23 510 65 41 95    
Jackdaw 23 1587 79 65 92    
Great Spotted Woodpecker 23 1073 104 91 120    
Chiffchaff 23 1495 107 97 119    
Stonechat 23 74 117 58 218    
Nuthatch 23 506 126 102 155    
Goldfinch 23 1586 145 127 163    
Blackcap 23 1577 146 133 160    
Gadwall 23 45 221 96 540    
Buzzard 23 853 226 179 275    
Barn Owl 23 52 259 161 492    
Greylag Goose 23 229 306 152 598    
Cetti's Warbler 23 30 314 108 2559    
Ring-necked Parakeet 23 92 1777 793 9550    
Little Egret 23 53 2129 733 53460    
Red Kite 23 143 21795 13385 74499    

18. Table of population increases for BBS Scotland 1995-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
House Sparrow 23 118 51 18 87    
Cuckoo 23 87 54 29 92    
Wren 23 261 55 39 72    
Magpie 23 64 62 26 121    
Long-tailed Tit 23 36 63 10 128    
Raven 23 58 63 11 126    
Lesser Redpoll 23 57 67 20 123    
Reed Bunting 23 72 70 40 117    
Tree Pipit 23 40 80 45 128    
Stonechat 23 42 99 42 220    
House Martin 23 82 110 58 197    
Whitethroat 23 98 130 48 214    
Goldfinch 23 122 224 160 311    
Great Spotted Woodpecker 23 67 399 277 579    
Blackcap 23 84 539 362 839    
Chiffchaff 23 77 836 508 1435    

19. Table of population increases for BBS Wales 1995-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Jay 23 84 52 20 97    
Chiffchaff 23 164 54 31 76    
House Sparrow 23 143 92 61 139    
Goldfinch 23 151 104 73 156    
Blackcap 23 147 143 97 204    
Great Spotted Woodpecker 23 97 189 119 293    
Stonechat 23 45 191 108 322    

20. Table of population increases for BBS Northern Ireland 1995-2018

Species Period
(yrs)
Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
Dunnock 23 75 64 20 130    
Song Thrush 23 83 65 33 100    
Wren 23 97 72 30 109    
Jackdaw 23 81 72 39 131    
House Martin 23 49 83 24 199    
Pheasant 23 45 104 30 281    
Woodpigeon 23 90 116 73 169    
Collared Dove 23 38 116 46 331    
Great Tit 23 79 135 89 188    
Hooded Crow 23 87 179 111 254    
Goldfinch 23 56 485 289 1088    
Buzzard 23 36 1305 588 3591    
Blackcap 23 46 1540 1081 3285    

 

This report should be cited as: Woodward, I.D., Massimino, D., Hammond, M.J., Barber, L., Barimore, C., Harris, S.J., Leech, D.I., Noble, D.G., Walker, R.H., Baillie, S.R. & Robinson, R.A. (2020) BirdTrends 2020: trends in numbers, breeding success and survival for UK breeding birds. BTO Research Report 732. BTO, Thetford. www.bto.org/birdtrends