Richard Rowlett wrote:
>Are other species in addition to Swainson's Hawks involved in the
>pesticide-induced die-off in Argentina?

I don't know.
In a related vein, though, at the AOU/COS/Wilson meeting in 1994 someone
brought a videotape of huge Dickcissel flocks (in Venezuela?). Some footage
showed awesome flights reminiscent of the Western Sandpipers at Grays Harbor
during the peak of migration. Other footage showed close ups of dozens of
zoned-out or droop-winged, twitchy birds standing (as best they could) on a
dirt road through an agricultural field. My reference is in the other
office, but I believe they were impacted by insecticides.
------------------------
Scott Richardson
NE Seattle
salix at isomedia.com