RSPB Posted August 17, 2016 Share Posted August 17, 2016 Swift numbers have almost halved in twenty years and new nesting boxes are needed to help numbers recover as they return to the UK to breed every summer Read more: http://www.rspb.org.uk/news/423714-building-new-homes-for-swifts-and-communities?utm_source=rss&utm_medium=feed&utm_campaign=News Link to comment Share on other sites More sharing options...
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