Contents of report
Breeding Bird Survey
Common Birds Census
Constant Effort Sites
Nest Record Scheme
Waterways Bird Survey
Alerts
Summary
What the categories mean
Return to BTO Home Page
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COAL TIT Parus ater
 
Conservation Listings Long term trend

Unlisted/Green
Biodiversity Steering Group
Conservation Concern List

UK: Fluctuating with no long-term trend
Farmland: Rapid increase
 
Status Summary
Coal Tit abundance has been rather stable since the mid-1970s, following an earlier rapid increase. Confidence intervals are wide, but the trends in woodland and farmland habitats have been quite different, and the BBS shows large changes that have varied geographically across the UK. These patterns suggest that the influences on UK Coal Tit abundance have been complex.
 
 
Table of population changes for Coal Tit
Source Period
(yrs)
Years Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
CBC all habitats 30 1968-1998 113 36 -14 112    
  25 1973-1998 118 -5 -34 31    
  10 1988-1998 112 5 -8 18    
  5 1993-1998 116 -4 -13 4    
CBC farmland 30 1968-1998 27 169 . .    
  25 1973-1998 27 51 . .    
  10 1988-1998 24 29 . .    
  5 1993-1998 22 1 . .    
CBC woodland 30 1968-1998 69 10 . .    
  25 1973-1998 75 -17 . .    
  10 1988-1998 81 1 . .    
  5 1993-1998 85 -6 . .    
BBS UK 5 1994-1999 510 2 -7 13    
BBS England 5 1994-1999 328 8 -3 21    
BBS Scotland 5 1994-1999 97 -10 -29 14    
BBS Wales 5 1994-1999 50 2 -24 38   Small sample
BBS N.Ireland 5 1994-1999 34 66 -10 206   Small sample
The Breeding Bird Survey is jointly funded by BTO, JNCC and RSPB
 
 
Productivity information is not currently available for this species
 
 

 

   



The report should be cited as: Baillie, S.R., Crick, H.Q.P., Balmer, D.E., Bashford, R.I., Beaven, L.P., Freeman, S.N., Marchant, J.H., Noble, D.G., Raven, M.J., Siriwardena, G.M., Thewlis, R. and Wernham, C.V. (2001) Breeding Birds in the Wider Countryside: their conservation status 2000. BTO Research Report No. 252. BTO, Thetford. (http://www.bto.org/birdtrends)

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