In "general", I can't fault the argument below. However, if we don't
make "value judgments" [indeed, think we "aren't"], we might as well
let all "human-induced" effects run their course. I bet there are
many on this site who disagree with MY "value judgment" regarding
global warming [without specifically expressing it, we all have
one]... That aside, we make value judgments when we put up nest
boxes, say we "love" bird watching, and feed birds. To say otherwise
is both irresponsible and untrue - Jim Greaves, MT

At 01:03 PM 3/30/2010, tweeters-request at mailman2.u.washington.edu wrote:
>Avian species cannot help if they are introduced, released or just
>spread through opportunism, bringing them in to conflict with
>"native", "local" or more poorly adapted
>birds.
>2) All this seems to be as a result of human action as we create
>farmland, cities and plastic strewn oceans, where there were none
>before. But it is our responsibility, not the birds. It does not
>mean that we should not manage our bird boxes for unwanted
>intruders, create extra nesting holes in snag!
> s, or reduce the Cowbird population. But making value judgments
> based on whether species are native or introduced to me is
> predjudicial and deflects us away from our ultimate responsibility
> in altering our landscapes and habitats and the difficult
> management choices that must be made.
>--
>David Hutchinson, Owner
>Flora & Fauna: Nature Books
>Discovery Gardens: Native Plants
>3212 W.Government Way
>Seattle,WA.98199
>http://www.ffbooks.net/
>206-623-4727