Subject: [Tweeters] Aggressive Black-headed Grosbeak
Date: Jun 1 16:59:44 2011
From: Darlene Sybert - drsybert at northtown.org


There are at least four male Black-headed Grosbeak and a number of
females visiting my feeders--and without any of them behaving
aggressively to each other. But they are chasing away the smaller
birds--American goldfinch, Junco, and Chickadees. I do not recall
seeing this behavior in the past. Is it typical?

Darlene
Cinebar