Interesting. There was a book published last fall--author/title I have
blanked entirely!--about Desolation Canyon in Utah. Same deal: no
crows. Writer couldn't figure out why, either.
However, the no-garbage theory holds there, too!
But seriously, an interesting question. Ideas, anyone?
Irene
PS I will try to track down a citation on the book.

On Thu, 20 Jul 1995, Alan Richards wrote:

.... Are there theories,
> reasons, (or even data?) about why this relatively common bird in some places
> is not around in such a large area as Grant county? They seem to be
> in lots of other eastern WA areas -- is there just not enough garbage
> in Grant co?
>
> Alan Richards / alanr at ednet1.osl.or.gov
> ====
>