All males here as well, both along the South Platte in Denver and on the Barr Lake CBC. Definitely a mix of young and adult plumaged birds. And try as I might none of them could be converted to Rusty's.
Charlie Chase Denver On Tue, Dec 29, 2020 at 11:12 AM W. Robert Shade III <[email protected]> wrote: > 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 > Lakewood > > -- > You received this message because you are subscribed to the Google Groups > "Colorado Birds" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/cobirds/CAFwvYHrG0Sm6E9%2Bv9Lrbu2ttFZCwhoSgZWjzH9CFQFfWnuGgpg%40mail.gmail.com > <https://groups.google.com/d/msgid/cobirds/CAFwvYHrG0Sm6E9%2Bv9Lrbu2ttFZCwhoSgZWjzH9CFQFfWnuGgpg%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/CA%2BBAsdtuHQ%3DnfTwuFwvj5ygzp%2B4_o%3DhLOX3%2Bbckv%2BNXB4U_URg%40mail.gmail.com.
