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BTO Blueline
RING OUZEL
Turdus torquatus
Ring Ouzel © G H Higginbotham
 

• Population
  changes

• Productivity
  trends

• Additional
  information
Conservation listings
Europe: no SPEC category (concentrated in Europe, conservation status favourable)
UK: red (>50% population decline)
Long-term trend
UK: probable decline
UK population size
6,157–7,549 pairs in 1999 (Wotton et al. 2002: BiE04, APEP06)
Status summary
The second breeding atlas showed a decline of 27% in the number of 10-km squares occupied between 1968–72 and 1988–91 (Gibbons et al. 1993), and the extent of population decline has since been established by a special survey. A 58% population decline was estimated for the period between 1988–91 and 1999, warranting red listing for this species (Gregory et al. 2002). British & Irish bird observatory data show a decline in spring passage Ring Ouzels at western sites during 1970–98 that matches the estimated UK breeding decline, but no decline at eastern sites where most birds are of Fennoscandian origin (Burfield & Brooke 2005). These authors infer that, since these populations winter together, the reasons for decline among UK breeders must lie on the breeding grounds or on passage: the earlier timing of spring migration for UK birds, and their more westerly route, gives them greater exposure to hunting pressures, particularly in southwest France. Reasons for decline linked to the breeding grounds have proved elusive (Buchanan et al. 2003).
 

Population changes
Annual breeding population changes for this species are not currently monitored by BTO
 

Productivity trends

 

 

Insufficient data on clutch size
available for this species
Brood size graph
Egg nest failure graph
Chick nest failure graph
Laying date graph

 

 

Insufficient data on CES
available for this species
 

Additional information
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This report should be cited as:
Baillie, S.R., Marchant, J.H., Crick, H.Q.P., Noble, D.G., Balmer, D.E., 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. (2006)
Breeding Birds in the Wider Countryside: their conservation status 2005.
BTO Research Report No. 435. BTO, Thetford. (http://www.bto.org/birdtrends)

Pages maintained by Susan Waghorn and Iain Downie: Last updated 12 May, 2006