Wednesday 12th September 2012 marks the start of the new BTO Winter Thrushes Survey. Over the next two winters, the BTO will be asking people across the UK to record where and when they encounter any of our six species of thrush (Blackbird, Song Thrush, Mistle Thrush, Redwing, Fieldfare and Ring Ouzel), either found here on migration or during the winter months.
Populations of all six speci...
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