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BTO Blueline
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BTO Blueline
Ficedula hypoleuca
Pied Flycatcher © Colin Varndell

• Population

• Productivity

• Additional

Conservation listings
Europe: no SPEC category (concentrated in Europe, conservation status favourable)
UK: amber (25–50% decline)
Long-term trend
UK: decline
UK population size
35,000–40,000 pairs in 1990 (1988–91 Atlas: APEP06); 29,500–33,800 pairs in 2000 (updated using BBS trend: BiE04)
Status summary
Pied Flycatchers are restricted to upland deciduous woods in parts of western and northern Britain. The proportions of CBC plots occupied rose during the 1980s, but the species was never numerous enough for trends to be estimated (Marchant et al. 1990). The 1988–91 breeding atlas revealed a small expansion in range since 1968–72, aided by the provision of nest boxes in new areas (Gibbons et al. 1993). BBS indicates that abundance has decreased steeply since 1994, prompting the species' recent move from the green to the amber list. Percentage nestbox occupancy has also fallen over a similar period at a number of sites monitored as RAS projects. The reasons for this decline are unknown, but lie at least partly outside the breeding season (Goodenough et al. 2009). No trends are evident in the number of fledglings per breeding attempt. Numbers have fallen widely in Europe since 1980 (PECBMS 2010). In the Netherlands, climate change may have brought about decline in Pied Flycatchers by advancing the peak period of food availability for this species in deciduous forests – the birds being unable so far to compensate for the change in food supply by breeding earlier (Both 2002, Both et al. 2006).
BBS UK graph

1995-2008: -50% (confidence interval -63% to -31%)

Population changes in detail

 Demographic trends

Fledglings per breeding attempt graph
Laying date graph
More demographic trends
Additional information

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This report should be cited as: Baillie, S.R., Marchant, J.H., Leech, D.I., Renwick, A.R., Joys, A.C., Noble, D.G., Barimore, C., Conway, G.J., Downie, I.S., Risely, K. & Robinson, R.A. (2010). Breeding Birds in the Wider Countryside: their conservation status 2010. BTO Research Report No. 565. BTO, Thetford. (http://www.bto.org/birdtrends)

Pages maintained by Iain Downie, Mandy T Andrews and Laura Smith: Last updated 06.10.2010