American redstart

May 22, 2019, Rondeau Provincial Park, Ontario, Canada.


Techincally spring is 3 weeks away but we won't be seeing the warblers for at least 5 weeks.
Setophaga ruticilla
The male American Redstart sometimes has two mates at the same time. While many other polygamous bird species involve two females nesting in the same territory, the redstart holds two separate territories that can be separated by a quarter-mile. The male begins attracting a second female after the first has completed her clutch and is incubating the eggs.
Source - Cornell Lab of Ornithology.

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