>From Michael Price:
> Actually, I'm tossing out the First Dumb Question of 1997. If birds have
> higher internal temperatures than most critters, why don't we see their
> breath steam on a cold day?

First Dumb Question of many, I hope.
Could Quantity be a factor? There's not much bird breath there to
condense. Similarly, I don't recall seeing squirrel vapor on chilly days.
Also, birds' gas-exchange systems are fundamentally different than those
of mammals. Maybe there's something different about their exhaled breath.
--
Scott Richardson
NE Seattle
salix at halcyon.com