American Bird Conservancy Posted September 12, 2014 Share Posted September 12, 2014 This handsome western buteo, which occurs in both light and dark morphs (color variations), was named for British naturalist William Swainson. Some of its folk names - "grasshopper hawk" or "locust hawk" - reflect this bird's tastes in prey. View the full article Link to comment Share on other sites More sharing options...
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