PhysOrg Posted August 14, 2019 Share Posted August 14, 2019 The metal doors of a shoebox-sized cage open up and a bird tagged #811 launches into a giant aviary. The palm-sized finch performs a midair pirouette, lands on a willow branch and curiously twitches its saffron-colored head sideways, as if surprised by its good fortune. View the full article Quote Link to comment Share on other sites More sharing options...
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