BirdLife International Posted March 20, 2017 Share Posted March 20, 2017 For people in built-up areas, this bird represents their only interaction with wildlife. A census reveals the Tree Sparrow’s love for air vents, pipes and wall cracks Read more: http://feedproxy.google.com/~r/BirdLife-news-posts-blogs/~3/dXyuuIm7okA/urban-tree-sparrows-throng-hong-kong Link to comment Share on other sites More sharing options...
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