Blackburnian Warbler

Relying highly on the abundance of spruce budworm populations in their boreal forest nesting grounds, Blackburnian Warblers numbers will rise and fall dramatically with numbers of this insect prey.

IMG_3288

“Blackburnian Warbler, May 2013”

Technical details: Canon EOS 7D camera,  EF400mm f/5.6L USM lens, ISO 640,  f/5.6, 1/200 sec
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