Subject: Okanogan Pelicans and DDT
Date: Nov 20 23:04:46 2001
From: Greg Pelletier - pelican at vei.net
Dear Tweeters,
I'm posting the question below from Bill Yake. Bill works for the Department of Ecology and is studying DDT in wildlife. If you have any comments for Bill, please send them to him at wyak461 at ecy.wa.gov or you can call him at 360-407-6778
Greg Pelletier
pelican at vei.net
> -----Original Message-----
> From: Yake, William
> Sent: Thursday, August 23, 2001 9:49 AM
> To: Goldstein, Larry; Morrison, Scott;
> Pelletier, Greg
> Subject: Okanogan Pelicans and DDT
>
> On Tuesday we saw a pair of white pelicans at the
> mouth of the Okanogan River. We're doing a DDT TMDL on the Okanogan and
> have also observed other fish eating birds here: ospreys, great blue
> herons, and bald eagles.
>
> My main question is this: How unusual is it to see
> white pelicans in Washington - especially in north central Washington? I'm
> also wondering if there is likely to be any interest in the birding
> community in this and other pending TMDLs for DDT. Some work has
> previously been done on the Yakima and another effort is pending on Lake
> Chelan. Specifically with regard to the Okanogan we have some documents
> from Canadian researchers (mid 90's) saying that they shouldn't try to
> reintroduce peregrines to the Okanogan Valley (Canadian side) because of
> high DDT concentrations in potential prey items - especially robins
> feeding in orchards. (DDT in Okanogan orchard soils is said to be some of
> the highest in north America.)
>
> Thanks for any feedback,
>
> Bill Yake
> Washington State Department of Ecology
> 360-407-6778
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