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BREEDING WARBLER SURVEY 2010 The recent Atlas indicated a significant decline across Cheshire and Wirral of some of our summer migrant warblers, consistent with the wider national picture emerging from other observations. The apparent decline of the Willow Warbler, for example, is of particular concern. In response, a survey has been undertaken in the 2010 breeding season involving the recording of the numbers of birds as well as the level of breeding evidence, with the objective of supplementing the breeding evidence only data gathered in the atlas survey. The survey method involved several survey visits, in which numbers of individuals of each different warbler species were counted along a defined route of the surveyor's choice and breeding activity was recorded using the atlas breeding codes. The results are now being gathered and preliminary review and analysis is commencing. A full report on the findings will appear in due course. October 2010
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