American Birding Association Field Guide to Birds of Ontario: A Field Guide Review
10,000 Birds
AUGUST 1, 2023
The Snowy Owl account focuses on irruptions. The material on Boreal Owl is a wonderfully condensed account about the species’ sexual dimorphism and its relationship to breeding plus the link between the species’ cyclical abundance and the red-backed vole. Boreal Owl, p. xv, photo by Brian E.
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