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Female ID
It can be very difficult to distinguish calliope from rufous females. On the calliope look for green on her back and tail. The rufous female will show rufous-coloring on the rump and tail.

"Female calliope; distinct typical back feathers with light rust-colored breast and partial red throat gorget. Watching the courting flight ritual performed by a nearby male." Osoyoos, British Columbia   04/27/14

Christine Haines
female Calliope