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BTO Blueline
LINNET
Carduelis cannabina

Linnet © Tommy Holden

Conservation listings

Europe: SPEC category 4, secure
UK: Red (>50% population decline)

Long-term trend
England: rapid decline
 
Status summary
Linnet abundance declined rapidly in the UK between the mid 1970s and mid 1980s. Numbers have subsequently remained stable, although with some recovery in Scotland. CES has shown declines continuing through the 1990s. Nest failure rates rose during the principal period of population decline, and this represents the most likely demographic mechanism driving the observed decreases in abundance (Siriwardena et al. 1999, 2000b). CES results suggest that low productivity is still a problem for the species, possibly due to reductions in hedgerow quality leaving nests more exposed and therefore at greater risk of predation.
 
CBC/BBS England graph
 
Table of population changes for Linnet
Source Period
(yrs)
Years Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
CBC/BBS England 33 1967-2000 279 -70 -78 -61 >50  
  25 1975-2000 331 -62 -70 -52 >50  
  10 1990-2000 622 -6 -21 12    
  5 1995-2000 953 -16 -21 -11    
CES adults 17 1984-2001 21 -93 . . [>50*]  
  10 1991-2001 24 -83 . . [>50*]  
  5 1996-2001 20 -61 . . [>50]  
CES juveniles 17 1984-2001 15 -96 . . [>50*] Small sample
  10 1991-2001 16 -88 . . [>50] Small sample
  5 1996-2001 16 -67 . . [>50] Small sample
BBS UK 8 1994-2002 1009 -4 -11 3    
BBS England 8 1994-2002 826 -12 -19 -5    
BBS Scotland 8 1994-2002 78 34 3 75    
BBS Wales 8 1994-2002 77 13 -15 50    
BBS acknowledgement
 
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 Linnet
Variable Period
(yrs)
Years Mean
annual
sample
Trend Predicted
in first year
Predicted
in last year
Change Comment
Clutch size 33 1968-2001 110 None        
Brood size 33 1968-2001 124 Curvilinear 4.07 chicks 4.21 chicks 0.14 chicks  
Daily failure rate (eggs) 33 1968-2001 156 Curvilinear 0.0161 nests/day 0.0201 nests/day 0.004 nests/day  
Daily failure rate (chicks) 33 1968-2001 110 Linear increase 0.0148 nests/day 0.0223 nests/day 0.0075 nests/day  
Laying date 33 1968-2001 114 None        
Percentage juveniles (CES) 17 1984-2001 24 Smoothed trend 373 productivity index 101 productivity index -73%[>50]  
Percentage juveniles (CES) 10 1991-2001 27 Smoothed trend 205 productivity index 101 productivity index -51%[>50]  
Percentage juveniles (CES) 5 1996-2001 24 Smoothed trend 168 productivity index 101 productivity index -40%[>25]  
 
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