Stunned after window collision to which its pigeon prey succumbed.
rationale: with the set of pictures, trying to capture head profile (square-ish) looking side to side; and tail pattern on the ventral side (outer feathers shorter than middle feathers) and separate tail feathers more rounded); feet and talons hard to see; admittedly, the Accipiter against a overcast sky in winter and iPhone camera maxed out on zoom is satisfactory - less than optimal.
I am placing this Hawk into the Genus level - for now. I think it is the same "Cooper's Hawk" seen 2 days ago in the same area and I also think it is an Adult - male (smaller in size). I could not get any closer for photos - one step closer- the Hawk turns on the branch - dives away, but after my walk out of the nature preserve (photo of creek is the break)... it came back to the same branch !! - This time with flocks of birds zooming overhead - streaming by...
Weather Conditions: 31 degrees, snowing, cloud cover...