Combined with the wholesale conversion of eastern forests that
would have been required for breeding to human uses.

Dale Goble wrote:
>
> The two species occupied very different niches and thus were not in
> competition. The best current understanding of why passenger pigeons went
> extinct is that they were hunted to a point where their population dropped
> below that required to breed.
>
> Dale Goble
> Moscow

--
Mike Patterson The common view of science is that it is a sort of machine
Astoria, OR for increasing the race's store of dependable facts.
mpatters at oregonvos.net It is that only in part; in even larger part
it is a machine for upsetting undependable facts.

----- H.L.Mencken
http://www.pacifier.com/~mpatters/bird/bird.html