This could be a western pondhawk.
This tree is a place where they story their acorns.
These flowers grow where it wet and are very fragrant almost pungent.
Only time for one picture which did not catch the under wings.
These are captive and feeding of choke cherry.
Only got this one shot, it was sparrow size.
Lousy pix of this beautiful creature.
Poor images; ID may not be possible...