Hi Tweets,

I'm going with immature Cooper's Hawk. I'm not sure about male or female but
it looks like it has a full crop! A Northern Goshawk would (usually) have a
pretty distinct eye stripe and this bird is too small for even a male goshawk.
The tail is quite short (compared to a goshawk) and the toes are very thin.
Sometimes the difference is pretty easy to tell:
http://www.mcwdn.org/Animals/BirdNorthernGoshawk.jpg
http://www.wildlightphoto.com/birds/accipitridae/nogo01.jpg

And sometimes not (notice the size of the feet though):
http://en.arocha.org/images/shared/969l.jpeg

Also, here is a great page for Cooper's Hawk vs. Sharp-shinned Hawk ID:

http://www.birds.cornell.edu/pfw/AboutBirdsandFeeding/accipiterIDtable.htm

Simone Lupson-Cook
Seattle, WA
Zingie at aol.com