It's been a bad day for identifying birds. I found this out on the west side of the valley. Initially I thought, "brown, female Kestrel". But the head doesn't look like that of a kestrel. It's small. Maybe a female Merlin? It's resting after a successful hunt/meal.
This just in, it's either a Taiga Merlin or Prarie Falcon (Falco Mexicans). Rob Palmer, SmugMug. 26-Nov-11