Blizzards of 2010: Red-Tailed Hawk and Red-Shouldered Hawk

We saw in a previous post the red-shouldered hawk during the peak of the snow.  Here is a photo of the red-shouldered hawk perching the morning after the storm.

The next morning, this red-tailed hawk arrived and perched in the same spot.

This hawk would perch, then fly out, make a circle, and then perch again.

In the two above photos, you can see the red-tailed hawk's wing feathers as viewed from above and below.  The dark upper feathers and the white lower feathers provide protection from predators - though which predators is never clear to me.

And here is the reason for the name - the clearly red tail,