I've used them to annoy my cats (work really well for this), but I have
limited success in the field. Pishing seems to work better for most
species for me. RK
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Ray Korpi "Television doesn't allow much depth."
Portland, OR/Vancouver, WA --Dan Rather, interviewed by
rkorpi at clark.edu Don Imus, 11/6/97
Compiler, Portland, OR CBC, January 3, 1998
President, Oregon Field Ornithologists
--New members always welcome--