Female Mountain Bluebird (Sialia currucoides)

A close look at the band reveals the letters ABRE. I've never noticed that before and after a search I found out that it is Spanish for OPEN, which is also imprinted on the opposite side. Apparently the hope is if the bird is found dead the band will be opened to reveal a toll free number, 1-800-327-BAND valid in Canada, the United States and Mexico to report the find.

Done