>Way Back Jack wrote: >> Birds would be more comfortable sleeping in a cozy nest, rather than >> perched on a horizontal structure like a tree branch or power wire. A >> couple of summers ago, a bird slept while attaching itself somehow to >> a circular thermometer that was nailed to a vertical garage wall under >> tha carport. I've seen turkey buzzards with feet literally frozen to >> tree limbs following a frozen rain storm. >> >> Don't they remember how nice and comfy it was in the nests of their >> youth?
>Birds can lock their feet closed and thus are able to sleep while >perched on a small diameter structure.
It's hard to comprehend how a slumbrous state can be maintained while muscles and nerves are active to maintain balance and equilibrium. If I were in their shoes, you can bet that night time would find me plopped down and snuggled up in some sort of nest for my ZZZZs.