[cobirds] Yellow-rumped (hybrid?) ID help please (Boulder county)

Hi folks,

Is the bird in the attached photos a Myrtle x Audubon hybrid? A female? Something else I'm overlooking?

The bird has the yellow throat patch of an Audubon, and the yellow crown of a male, but it has no bright wing bars and is generally very pale, suggesting Myrtle. I'm puzzled by the brown in the wings, especially for a spring bird.

Although not shown in the photos, the bird had a yellow rump as well as white flashes toward the end of the tail.

Could it be a female Audubon x Myrtle still in first year plumage?

Is it just a female Audubon with faint wing bars? Do some females have yellow crowns?

Seen today at the Boulder Community Gardens in north central Boulder.

Thanks,

Richard Trinkner

Boulder

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