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A female Black-headed Grosbeak (left) bickers with a pair of Evening Grosbeaks.

Black-headed and Evening Grosbeaks

Posted by Evelyn Sherr on December 11, 2013 at 1:27 pm
Viewed 210 times

Large irruptions of Evening Grosbeaks often occur in the Willamette Valley in spring. After a hard, cold winter in 2011-12, the grosbeaks were looking for food. At the end of May 2011, a flock of Evening Grosbeaks found our backyard feeders and took over the tray feeder for a week or so. A pair of Black-headed Grosbeaks, already settled into the neighborhood, considered the Evening Grosbeaks unwanted interlopers in their tray feeder. The female Black-headed Grosbeak tried to get the Evening Grosbeaks to leave the feeder by loudly hissing at them. The brown-striped object above the female Evening Grosbeak’s back is the head of a pine siskin avoiding the spat by leaving the feeder. The strategy didn’t work; the Evening Grosbeaks were soon back in force. Shot using a Nikon D300 camera with a Nikkor 300 mm lens from the back porch of our home.