The raven pictured in prior post is one of these two birds. I believe they may have been engaged in courtship behavior as they interacted in ways described in Birds of North American online. Specifically, the bird on the left (presumably a male) jumped up on the branch near the other bird and then bowed to the other bird while the bird on the right "displays fuzzy fluffed-out head" (I think that is why the bird on the right has it's feathers standing almost straight out in back).

They tolerated my watching and taking photos then flew off together.
SeEtta