Indigo bunting.

May21, 2018, Rondeau Provincial Park, Ontario, Canada.

Always a spring favourite for me, I don't see many.
Passerina cyanea
Indigo Buntings migrate at night, using the stars for guidance. Researchers demonstrated this process in the late 1960s by studying captive Indigo Buntings in a planetarium and then under the natural night sky. The birds possess an internal clock that enables them to continually adjust their angle of orientation to a star—even as that star moves through the night sky.


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