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Climate Change and UK Birds

Today I thought I'd just put on the blog the press release from the BTO and other organisations outlining the changes in birding behaviour with global warming. As it was embargoed before midnight last night I couldn't put anything on the blog until now. It's interesting reading and as a press release gives the salient points. Therefore I shall leave it in it's entirety for you to read at leisure.

Those of you may also not know that separate to this, but linked due to climate change, Cattle Egrets bred in Somerset this year for the first time. They did attempt breeding last year, but without success.

Finally I'm still wavering about going to the Bird Fair this weekend. But if you are going, pop along to the Bird Guides stall, and see Jack Wylson. He's just edited a new video guide to British Birds which is being released there. It's a 130 species beginners version. The full 270 species version we're releasing in the autumn, plus a butterfly DVD of all UK species.

~~~~~~~~~~~~~~~~~Press release issued by the RSPB featuring joint work by: The British Trust for Ornithology; the Countryside Council for Wales; Natural England; Northern Ireland Environment Agency; the RSPB; Scottish Natural Heritage; and the Wildfowl & Wetlands TrustEmbargo: No publication or broadcast before:00:01am on Friday 15 August, 2008
CLIMATE CHANGE AFFECTS UK'S BIRDS, SAYS REPORT Climate change is causing a number of widespread British birds to lay their eggs much earlier than 40 years ago, that's just one of the trends revealed in the latest State of the UK's Birds report - an annual publication produced by a coalition of conservation organisations looking at the fortunes of the UK's bird populations.
Information from the British Trust for Ornithology's Nest Record Scheme (incorporated in the State of the UK's Birds report for the first time) shows that birds like the chaffinch are, on average, laying their eggs about a week earlier than they did in the mid 1960s. Information obtained for other species, such as blue and great tits, robins and swallows, shows a similar pattern. The changes in laying dates recorded since the mid 1960s are believed to be in response to increasing temperatures triggered by climate change. In 1966, the average date for chaffinches laying their first egg was May11, but by 2006 this date had moved forward to May 2. For robin, the average dates have moved from April 28 to April 22, in 2006. Dr David Leech, organiser of the BTO's Nest Record Scheme, said: "Every year a network of 500 BTO volunteers monitor 30,000 nests, providing an enormous wealth of information about the changes in nesting activities of many of our birds. Over time, this body of information reveals a fascinating insight into how wildlife is affected by environmental changes."The report, which is produced by a partnership of organisations, also shows that birds are impacted by climate change in other ways too. Information from the British Trust for Ornithology shows that song thrushes rear fewer young during dry summers [note]. Song thrushes feed their chicks largely on earthworms which are much harder to find in drier ground. A graph combining rainfall in England and Wales with song thrush nesting success showed that the birds reared more young than any year since 2004 - another wet summer. Drier summers are an anticipated feature of climate change in the UK and the data indicates that this bird of conservation concern will struggle in future.
Each winter the UK's food-rich estuaries are vital to the survival of internationally-important numbers of wading birds that arrive from northerly and easterly breeding grounds. Although the overall number of these birds increased by about 50 per cent up to the late 1990s, numbers have since started to decline. The declines have been particularly acute for several key...

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