I've watched the migrations, here, in my youth and now, again, in my golden years and they have fallen off - as much as 50 % for some species.
Aside from pesticides and herbicides, there's a big concern now over land framentation and loss of habitat. Ducks Unlimited has been very successful in preserving wetlands and are now embarking on 'a plan for all birds' where vital stop over areas are preserved and corridors established.
I asked about 'Silent Spring' because I remember hearing the book's name mentioned awhile back and thought it might have something to do with birds and environmental conservation. Thanks!
> Silent Spring was written by Rachel Carson,
> and is considered sort of the beginning of
> the environmental movement. She was a
> (biologist maybe) who uncovered the dangerts
> of (DDT is it--the pesticide) and did a lot
> of research into the effect of pesticides
> and insecticides on the environment after
> WW1 or 2 when the chemicals they were
> manufacturing for the war were found to be
> good for killing unwanted bugs and stuff in
> crops. It's very poetically written, but
> still taking me a while to get through it.
> Rachel Carson died of cancer due to her
> research and exposing herself to the many
> harmful manufactured chemicals being used
> the world at large.