The Tualatin River National Wildlife Refuge ("TRNWR") served up a nice surprise yesterday, a persistently agreeable YELLOW-HEADED BLACKBIRD. It was chased away several times by Red-winged Blackbirds and Crows but always returned to the same area where it would take refuge in a small shrub before resuming its foraging activities. A couple days earlier, the refuge produced another first for me there - an AMERICAN BITTERN which is pictured at the end of this post as a bonus bird of sorts.
Looking east across the refuge at the headquarters of the TRNWR:
American Crow harassing the Yellow-headed Blackbird:
I added the map below to answer questions I'm getting about the location of the Yellow-headed Blackbird. Good luck!