Date: 12/29/20 10:12 am
From: W. Robert Shade III <wrshade3...>
Subject: [cobirds] Why Female Red-winged Blackbirds only?
I have as many as 50 or more Red-winged Blackbirds swarming my feeders
every morning. Why are they all females? Males do not look like females in
winter do they? This means they must spend the winter in different places.
If so, what is the rationale for that? I cannot think of any other species
that segregates by gender in winter.

Bob Shade
Green Mountain

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