Press Releases - July/August 2008
Item 3

No. 2008/07/22
July 2008

Issued by BTO on behalf of BTO, JNCC and RSPB
Embargoed until 17 July 2008

If you go down to the woods today…
you’d be hard-pressed to find many woodland birds

Woodland birds show biggest declines of all species monitored by the Breeding Bird Survey

Latest results from the BTO/JNCC/RSPB Breeding Bird Survey (BBS) put our woodland birds at the top of the list of declining species. The BBS is the primary source of information about our countryside birds, and now shows that Wood Warbler, Spotted Flycatcher, Pied Flycatcher and Willow Tit have all declined by over 50% since the start of the survey in 1994.

People power:
Nearly 3,000 volunteer birdwatchers got up very early in the morning to take part in the annual Breeding Bird Survey in 2007, and counted over a million individual birds of 220 species throughout the UK. Here are some of the results of their work:

Woodland birds decline
BBS volunteers found that many woodland birds have decreased since the start of the survey in 1994, but those with the most specialist habitat requirements (some of which are also long-distance migrants), have shown the most dramatic declines, notably Willow Tit (down 77%), Spotted Flycatcher (down 59%), Wood Warbler (down 57%) and Pied Flycatcher (down 54%). This is not due to loss of habitat, as overall we probably have more woodland than ever, but the tree composition and age structure of our woods have changed. Deer have increased in numbers, browsing away the forest under-story on which the birds depend, and forest management practices are changing the structure of our woodlands.

Stonechat, Nuthatch and Buzzard expand across the UK
It’s not all bad news, and some species are increasing in numbers. Many of the species showing the biggest increases are also expanding across the UK, notably Stonechat (up 278%), Nuthatch (up 71%) and Buzzard (up 56%). Buzzards are spreading from their western strongholds, thanks to reduced persecution and the recovery of rabbit populations from the effects of myxomatosis. Stonechats are also spreading back eastwards from the temperate western coastal areas, and Nuthatches, previously found only in England and Wales, are increasingly breeding in Scotland. Is this an indication of climate change? The 2007-11 Bird Atlas, organised by BTO (with BirdWatch Ireland and the Scottish Ornithologists' Club), will track the geographical spread of these species, as BBS monitors changes in numbers.

Life looking up for Grasshopper Warblers
The secretive Grasshopper Warbler is more often heard than seen, identified by a mechanical-sounding song that has been compared to a spinning reel on a fishing rod. They had been lost from many areas by the 1980s, and are red-listed due to population declines. However, BBS results now show that life is looking up for Grasshopper Warblers, which have increased by 68% since the survey started in 1994, and also increased by 24% between 2006 and 2007.

Notes for Editors

• The Breeding Bird Survey started in 1994, and is simple but carefully designed, attracting many participants. The good coverage throughout the UK means we are able to report changes in many populations in detail, reporting specific trends for England, Northern Ireland, Scotland and Wales and the nine English Government Office Regions, as well as for the UK overall.
• Details of all the above trends can be found in the BBS report. The full title of this report is The Breeding Bird Survey 2007 by Kate Risely, David Noble and Stephen Baillie. More information can be found at www.bto.org/bbs, and the report can be downloaded from www.bto.org/bbs/results/BBSreport07.pdf
• BBS press releases specific to Scotland and Wales have been produced.
• Changes in the status of breeding birds are used by the Government to set conservation priorities, and population trends are used as indicators of progress towards sustainable development.
• This important survey is carried out by volunteer birdwatchers throughout the UK, who receive no financial reward or expenses for their efforts. We are indebted to them for their tremendous support. Volunteer Regional Organisers co-ordinate the volunteers in their regions, matching birdwatchers with randomly selected 1-km squares to survey. The observers make two early-morning visits to their squares during the breeding season, and record all birds seen and heard along two 1-km walks across their square.
• The BBS is a partnership between the British Trust for Ornithology, the Joint Nature Conservation Committee (JNCC is the statutory adviser to Government on UK and international nature conservation, on behalf of the Council for Nature Conservation and the Countryside, the Countryside Council for Wales, Natural England and Scottish Natural Heritage) and the Royal Society for the Protection of Birds.

Images to use alongside this story can be obtained from BTO by e-mailing (this service is available outside office hours).

For further information please contact:

Kate Risely (BBS National Organiser) on 01842 750050 or e-mail: (office hours)
Paul Stancliffe (BTO Promotions Officer) on 01842 750050 or e-mail: (office hours)
Grahame Madge (RSPB Media Officer) on 01767 681577 (office hours) or 07702 196902 (out of hours)
David Noble (Head of Census Unit, BTO) on 01842 750050 or e-mail: (office hours)
Graham Appleton (Head of Publicity, BTO) on 01842 750050 or e-mail:
Graham Appleton is available outside office hours on 07704 847935