Birding Photo Quiz

Dark Buteos in Winter

The photos below, by SABO naturalists Tom Wood and Sheri Williamson,
show two dark buteos found in the Sulphur Springs Valley in winter.
Can you identify them?

Stumped? Take a look at the hints...

...or, if you're ready, go directly to the answers.

Hints:

The birds are both in adult plumage.
These are winter birds, which pretty much rules out Common Black-Hawk and Zone-tailed Hawk.
Remember Hawk Watching Rule #1: Assume it's a Red-tail and work from there.
Neither one of these birds nests in southeastern Arizona.
Legs and heads are very important clues.
Check out the lips on that bird on the right.

The answers...