Is amateur radio for the birds?

James, K8JHR, e-mailed me yesterday:

A pair of robins built their nests on top of my new remote coax switch.  It is located just a few feet outside the shack under the wood deck behind my house.

Robin's Nest

Since the robin is the state bird of Michigan, the state in which we both reside, I’m hoping he’ll wait until the chicks have left the nest before he removes it.

On a similar note, I notice that the birds that frequent my backyard have started using my 10m loop antenna and the various coax lines running here and there around the yard, as perches. This is really rather strange. The antennas have been up for years, and only this year have I noticed them doing this. Any thoughts?