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In On the Move, our regular column about migration, we present pairs of distribution maps from eBird that you can use to compare where interesting birds are at different times of the year. We featured Blackburnian Warbler, pictured above, in our October 2018 issue.
The stunning flame-orange throat and breast of the male Blackburnian Warbler is difficult to forget. A Setophaga warbler of boreal spruce woods and Appalachian hemlock stands, Blackburnian spends the majority of its time foraging high in the upper reaches of the canopy, a niche specialization that allows it to coexist with other warblers of the same genus. In June, it breeds across the Canadian boreal forest, from Alberta to the Maritime provinces, in parts of the northern lower 48, from Minnesota east to New England, and in Appalachia south to northern Georgia. In September, the species is on the move and can be found in forested habitats across much of the eastern U.S. Birders in the West, particularly along the California coast, should be on the lookout for lost individuals that have misoriented during fall migration.
eBird is the real-time online checklist operated by the Cornell Lab of Ornithology and Audubon. “On the Move” is written by eBird’s Garrett MacDonald, Chris Wood, Marshall Iliff, and Brian Sullivan. Submit your bird sightings at ebird.org.
A version of this article appeared in “Birding Briefs” in the October 2018 issue of BirdWatching.
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