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GREENFINCH
Carduelis chloris
Greenfinch © Tommy Holden
Conservation listings

Europe: SPEC category 4, secure
UK: Green

Long-term trend
UK, England: shallow increase
Status summary
Greenfinch abundance varied little up to the mid 1990s, and there was little change in either survival or breeding performance during this period (Siriwardena et al. 1998b, 2000b). More recent CBC/BBS data indicate population increases widely across the UK during the 1990s, which have occurred despite a decrease in productivity indicated by CES data. A continuing decline in productivity could presage a future population downturn, but the CES trend could perhaps be an artefact of changing feeding opportunities for young Greenfinches in summer. The trend towards earlier laying may be explained by recent climate change (Crick & Sparks 1999).
 
CBC/BBS UK graph
 
Table of population changes for Greenfinch
Source Period
(yrs)
Years Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
CBC/BBS UK 33 1967-2000 406 15 -8 44    
  25 1975-2000 491 12 -9 32    
  10 1990-2000 947 31 13 45    
  5 1995-2000 1478 19 13 24    
CBC/BBS England 33 1967-2000 348 24 -3 50    
  25 1975-2000 419 13 -12 33    
  10 1990-2000 808 31 15 42    
  5 1995-2000 1256 20 14 24    
CES adults 17 1984-2001 41 56 . .    
  10 1991-2001 47 0 . .    
  5 1996-2001 47 -1 . .    
CES juveniles 17 1984-2001 24 -54 . . [>50*]  
  10 1991-2001 29 -42 . . [>25*]  
  5 1996-2001 31 -13 . .    
BBS UK 8 1994-2002 1301 31 24 38    
BBS England 8 1994-2002 1101 31 24 38    
BBS Scotland 8 1994-2002 80 18 -10 55    
BBS Wales 8 1994-2002 82 19 -5 51    
BBS acknowledgement
 
CBC/BBS England graph
CES adult abundance graph
CES juvenile abundance graph
BBS UK graph
BBS England graph
BBS Scotland graph
BBS Wales graph
 
Table of productivity information for Greenfinch
Variable Period
(yrs)
Years Mean
annual
sample
Trend Predicted
in first year
Predicted
in last year
Change Comment
Clutch size 33 1968-2001 94 None        
Brood size 33 1968-2001 114 Linear decline 4.08 chicks 3.9 chicks -0.18 chicks  
Daily failure rate (eggs) 33 1968-2001 130 None        
Daily failure rate (chicks) 33 1968-2001 97 None        
Laying date 33 1968-2001 95 Linear decline day 145 day 133 -12 days  
Percentage juveniles (CES) 17 1984-2001 45 Smoothed trend 321 productivity index 101 productivity index -69%[>50*]  
Percentage juveniles (CES) 10 1991-2001 53 Smoothed trend 210 productivity index 101 productivity index -52%[>50*]  
Percentage juveniles (CES) 5 1996-2001 53 Smoothed trend 121 productivity index 101 productivity index -18%  
 
Clutch size graph
Brood size graph
Egg nest failure graph
Chick nest failure graph
Laying date graph
CES productivity graph
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This report should be cited as:
Crick, H.Q.P., Marchant, J.H., Noble, D.G., Baillie, S.R., Balmer, D.E., Beaven, L.P., Coombes, R.H.,
Downie, I.S., Freeman, S.N., Joys, A.C., Leech, D.I., Raven, M.J., Robinson, R.A. and Thewlis, R.M. (2004)
Breeding Birds in the Wider Countryside: their conservation status 2003.
BTO Research Report No. 353. BTO, Thetford. (http://www.bto.org/birdtrends2003)

Pages maintained by Susan Waghorn and Iain Downie: Last updated 16 February, 2009