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NUTHATCH Sitta europaea
 
Conservation Listings Long term trend

Unlisted/Green
Biodiversity Steering Group: Unlisted

UK: Rapid increase
 
Status Summary
Nuthatch abundance has increased rapidly since the mid-1970s, although BBS data suggest that the upward trend may now have ceased. The increase has been accompanied by a northward expansion in range (Gibbons et al. 1993) and has been associated a large increase in brood size and a trend towards earlier laying, the latter perhaps as a result of climate change (Crick et al. 1997).
 
 
Table of population changes for Nuthatch
Source Period
(yrs)
Years Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
CBC all habitats 30 1968-1998 64 116 53 191    
  25 1973-1998 69 114 64 179    
  10 1988-1998 77 25 13 41    
  5 1993-1998 82 19 8 30    
CBC woodland 30 1968-1998 43 139 . .    
  25 1973-1998 47 133 . .    
  10 1988-1998 56 25 . .    
  5 1993-1998 61 22 . .    
BBS UK 5 1994-1999 270 14 -1 32    
BBS England 5 1994-1999 223 11 -5 30    
BBS Wales 5 1994-1999 47 26 -13 82   Small sample
The Breeding Bird Survey is jointly funded by BTO, JNCC and RSPB
 
 
Table of productivity information for Nuthatch
Variable Period
(yrs)
Years Mean
annual
sample
Trend Predicted
in first year
Predicted
in last year
Change Comment
Clutch size 30 1968-1998 23 None       Small sample
Brood size 30 1968-1998 54 Curvilinear 4.06 chicks 5.61 chicks 1.55 chicks  
Daily failure rate (eggs) 30 1968-1998 42 None        
Daily failure rate (chicks) 30 1968-1998 45 None        
Laying date 30 1968-1998 25 Linear decline day 122 day 113 -9 days Small sample
 
Insufficient data on CES
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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Last updated: 4 July, 2001

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