The British Trust for Ornithology (BTO) is asking the public to take part in a survey to assess the effect of light and heat pollution on garden birds. The charity is asking people to get up before sunrise (about 08:00 GMT) on Thursday 9 January, to monitor their garden bird feeders. via Pocket http://www.bbc.co.uk/news/science-environment-25657424#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
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