I'll just chime in here to say that the anti-reflection 
material called "CollidEscape" that we put on our windows 
has reduced strikes to essentially zero.  A portion of the 
proceeds goes to raising awareness of window strikes:

    http://www.flap.org/film.htm

D

-- 
Derek C. Richardson, Laurel, PG County, MD
http://www.astro.umd.edu/~dcr/Archives/Photos/birds.html