The British Trust for Ornithology

BULLFINCH
Pyrrhula pyrrhula

Bullfinch © Tommy Holden
Conservation listings

Table 3/Red (>=50% Population decline)
Biodiversity Steering Group Priority Species List

Long-term trend
UK: Rapid decline over past 25 years
Farmland: Rapid decline
Woodland: Moderate decline
Status summary
The UK Bullfinch population has been in decline since the mid-1970s, following a period of relative stability. The decline was initially rapid, but has been shallower since the early 1980s. Nevertheless, the CES and BBS both suggest that the decline is continuing, at least in southern Britain. The demographic mechanism remains unclear (Siriwardena et al. 1999, 2000b), although agricultural intensification is suspected to have played a part. CES data indicate that productivity has increased over the last decade, and nest failure rates at the chick stage (15 days) have fallen from 37% to 21%.
Table of population changes for Bullfinch
Source Period
(yrs)
Years Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
CBC all habitats 31 1968-1999 136 -51 -60 -40 >50  
  25 1974-1999 140 -57 -65 -59 >50  
  10 1989-1999 117 -13 -22 -5    
  5 1994-1999 120 -11 -19 -3    
CBC farmland 31 1968-1999 49 -65 -77 -52 >50  
  25 1974-1999 47 -71 -79 -61 >50  
  10 1989-1999 40 -16 -33 5    
  5 1994-1999 39 -6 -18 12    
CBC woodland 31 1968-1999 59 -39 -53 -20 >25  
  25 1974-1999 64 -47 -60 -31 >25  
  10 1989-1999 62 -12 -23 4    
  5 1994-1999 64 -12 -20 -1    
CES adults 15 1984-1999 82 -25 . .    
  10 1989-1999 94 -23 . .    
  5 1994-1999 97 -13 . .    
CES juveniles 15 1984-1999 64 0 . .    
  10 1989-1999 74 14 . .    
  5 1994-1999 76 8 . .    
BBS UK 6 1994-2000 438 -25 -34 -15 (>25)  
BBS England 6 1994-2000 343 -24 -34 -14    
BBS Scotland 6 1994-2000 30 45 -20 162   Small sample
BBS Wales 6 1994-2000 46 -30 -51 1   Small sample
The Breeding Bird Survey is jointly funded by BTO, JNCC and RSPB
Table of productivity information for Bullfinch
Variable Period
(yrs)
Years Mean
annual
sample
Trend Predicted
in first year
Predicted
in last year
Change Comment
Clutch size 31 1968-1999 37 None        
Brood size 31 1968-1999 39 None        
Daily failure rate (eggs) 31 1968-1999 52 None        
Daily failure rate (chicks) 31 1968-1999 36 Linear decline 0.0307 nests/day 0.0159 nests/day -0.0148 nests/day  
Laying date 31 1968-1999 34 None        
Percentage juveniles (CES) 15 1984-1999 86 Smoothed trend 91 productivity index 100 productivity index 10%  
Percentage juveniles (CES) 10 1989-1999 99 Smoothed trend 70 productivity index 100 productivity index 44%  
Percentage juveniles (CES) 5 1994-1999 102 Smoothed trend 82 productivity index 100 productivity index 21%  




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This report should be cited as:
Baillie, S.R., Crick, H.Q.P., Balmer, D.E., Beaven, L.P., Downie, I.S., Freeman, S.N., Leech, D.I., Marchant, J.H.,
Noble, D.G., Raven, M.J., Simpkin, A.P., Thewlis, R.M. and Wernham, C.V.
(2002) Breeding Birds in the Wider
Countryside: their conservation status 2001. BTO Research Report No. 278. BTO, Thetford. (http://www.bto.org/birdtrends)

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