I need to apologize for my assumptions.
It too was looking to make a nest. I don’t know if this is the same crow from last year but the nest is in the same location. What a wonderful opportunity to witness the growth of two different kinds of birds.
This little bugger has been loitering around. Suspicious, I did a quick Google search (You can find almost anything! Yeah… not really, use Google), and yes, crows eat bird eggs (avianabalism?). I shooed it away twice, and the critter also chased it to this tree, but it doesn’t look like it’ll give up anytime soon.