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CUCKOO Cuculus canorus
 
Conservation Listings Long term trend

Unlisted/Green
Biodiversity Steering Group: Unlisted

UK: Moderate decline
Woodland: Rapid decline
 
Status Summary
The CBC shows Cuckoo abundance to have been in decline since the early 1980s. CBC methods may not be the most suitable for monitoring Cuckoos because of their large territories and use of habitats that the CBC does not cover well (such as wetland: Marchant et al. 1980). However, the BBS is not subject to these biases and shows a continuing decline, especially in England. Cuckoo abundance may have fallen because the populations of key host species such as Dunnock and Meadow Pipit have declined (Brooke & Davies 1987).
 
 
Table of population changes for Cuckoo
Source Period
(yrs)
Years Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
CBC all habitats 30 1968-1998 105 -32 -48 -14 >25  
  25 1973-1998 109 -29 -44 -10 >25  
  10 1988-1998 94 -22 -32 -10    
  5 1993-1998 91 -15 -25 -5    
CBC farmland 30 1968-1998 50 -20 . .    
  25 1973-1998 50 -21 . .    
  10 1988-1998 48 -19 . .    
  5 1993-1998 46 -16 . .    
CBC woodland 30 1968-1998 35 -60 -73 -36 >50  
  25 1973-1998 37 -58 -72 -36 >50  
  10 1988-1998 33 -32 -49 -9 >25  
  5 1993-1998 32 -17 -39 0    
BBS UK 5 1994-1999 744 -27 -33 -20 (>25)  
BBS England 5 1994-1999 607 -30 -36 -23 (>25)  
BBS Scotland 5 1994-1999 68 -10 -34 23    
BBS Wales 5 1994-1999 52 -31 -51 -3 (>25)  
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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