I hunt these Birds all the time and because of the Thick Foliage and the early Green up, I feel that a High Pitched Call will stay clearer and penetrate Thick Foliage better than a Lower Pitched Call. Osceolas will not usually tolerate a lot of Calling! Some days you can call a lot to them, but most of the time you can't call all that much or they will go the other way! You just have to take their temperature and call accordingly!