The British Trust for Ornithology
TUFTED DUCK
Aythya fuligula
Tufted Duck © Tommy Holden
 
Conservation Listings

Unlisted/Green
Biodiversity Steering Group Conservation Concern List

  Long term trend
UK: Stable/increasing
 
Status Summary
The WBS shows little long-term change in the abundance of Tufted Duck. However, the CBC and BBS data suggest that populations away from linear waterways may be increasing, a pattern supported by the species' winter trend in the UK (Musgrove et al. 2001). It is thought that the spread of the zebra mussel has helped this species in the recent past (Gibbons et al. 1993).
 
 
Table of population changes for Tufted Duck
Source Period
(yrs)
Years Plots
(n)
Change
(%)
Lower
limit
Upper
limit
Alert Comment
CBC all habitats 31 1968-1999 16 2141 941 5175   Unrepresentative? small sample
  25 1974-1999 17 504 270 1038   Unrepresentative? small sample
  10 1989-1999 19 39 -2 93   Unrepresentative? small sample
  5 1994-1999 21 8 -22 48   Unrepresentative?
WBS waterways 24 1975-1999 24 37 -41 250    
  10 1989-1999 28 24 -19 96    
  5 1994-1999 30 26 -7 70    
BBS UK 6 1994-2000 122 83 50 123    
BBS England 6 1994-2000 106 47 19 82    
The Breeding Bird Survey is jointly funded by BTO, JNCC and RSPB
 
 
Productivity information is not currently available for this species
 




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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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