The American Bird Conservancy has done research and provides some information
and a strong point of view on this topic.
Their suggested guidelines for communication towers focus on towers being less
than 200 feet tall, self-supporting, and most importantly - equipped with the
minimum lighting possible.
Jim Idelson K1IR
PS You can also take their "Indoor Cat Pledge"
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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