The British Trust for Ornithology
ROBIN
Erithacus rubecula
Robin © G H Higginbotham
Conservation listings

Unlisted/Green
Biodiversity Steering Group: Unlisted

Long-term trend

UK: Shallow increase
Farmland: Shallow increase

Status summary
Robins have increased since the mid-1980s according to both the CBC and the CES. Concurrently, significant improvements have occurred in breeding performance due to reductions in nest failure rates at the egg stage: for the 17-day egg stage (13 days incubation + 4 days laying) failure rates have fallen from 35% to 19%. Before the large population increase, abundance fluctuated, perhaps in response to winter weather. The CES and BBS show that marked, significant fluctuations have also occurred over the last 15 years.
Table of population changes for Robin
Source Period
(yrs)
Years Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
CBC all habitats 31 1968-1999 217 35 22 50    
  25 1974-1999 225 24 13 36    
  10 1989-1999 212 31 25 38    
  5 1994-1999 216 13 9 18    
CBC farmland 31 1968-1999 92 22 6 45    
  25 1974-1999 91 14 -2 34    
  10 1989-1999 92 34 21 48    
  5 1994-1999 93 14 6 22    
CBC woodland 31 1968-1999 86 39 20 54    
  25 1974-1999 93 29 14 42    
  10 1989-1999 98 26 19 34    
  5 1994-1999 101 11 5 18    
CES adults 15 1984-1999 88 34 . .    
  10 1989-1999 103 15 . .    
  5 1994-1999 110 0 . .    
CES juveniles 15 1984-1999 93 27 . .    
  10 1989-1999 108 10 . .    
  5 1994-1999 116 3 . .    
BBS UK 6 1994-2000 1703 20 16 24    
BBS England 6 1994-2000 1346 18 14 22    
BBS Scotland 6 1994-2000 152 23 6 42    
BBS Wales 6 1994-2000 141 19 7 32    
BBS N.Ireland 6 1994-2000 56 50 19 89    
The Breeding Bird Survey is jointly funded by BTO, JNCC and RSPB

Table of productivity information for Robin
Variable Period
(yrs)
Years Mean
annual
sample
Trend Predicted
in first year
Predicted
in last year
Change Comment
Clutch size 31 1968-1999 124 None        
Brood size 31 1968-1999 164 None        
Daily failure rate (eggs) 31 1968-1999 184 Curvilinear 0.0248 nests/day 0.0124 nests/day -0.0124 nests/day  
Daily failure rate (chicks) 31 1968-1999 154 Curvilinear 0.0244 nests/day 0.0199 nests/day -0.0045 nests/day  
Laying date 31 1968-1999 121 None        
Percentage juveniles (CES) 15 1984-1999 97 Smoothed trend 117 productivity index 100 productivity index -14%  
Percentage juveniles (CES) 10 1989-1999 113 Smoothed trend 111 productivity index 100 productivity index -10%  
Percentage juveniles (CES) 5 1994-1999 120 Smoothed trend 102 productivity index 100 productivity index -2%  




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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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This page last updated: 21 April, 2008

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