You can always go to the 'egg beater' style wind turbine if you're concerned about the birds. The proponents of that style of wind machine claim it is also more rugged and long-lasting, although I believe it does not collect as much wind energy per pylon.
Eggbeaters. Like this:

http://www.windside.com/index.html

Birds avoid 'em and they're prettier, I think, than those propeller-blade things.