PhysOrg Posted January 12, 2018 Share Posted January 12, 2018 Singing a duet in a foreign language isn't just for opera stars—red-capped robin-chats do it too. These orange-brown birds with grey wings can imitate the sounds of 40 other bird species, even other species' high-speed duets. Read the full article on PhysOrg Link to comment Share on other sites More sharing options...
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