I really need to say that I like them all. I look on Redtails as my "spirit" animal, hence my avatar.Unfortunately the best thing I can come up with is to keep bigger chickens! Around here I have Cooper's Hawks which play havoc with my bird feeders, but they're too small to take a large sized, i.e. Wyandotte, Cochin, Australorp and the like, bird. Likewise the Red Shoulder we've had move in recently. I actually like the Red Shoulder - she seems to have decimated the squirrel population.