I will tell you this, here in NE Montana when hunting late season birds, it is very common to have hawks, owls and eagles roosted in trees where pheasants congregate. Some birds will still bail out as soon as truck stops, others, will hold , not unusual to see birds of prey take off for birds that have bailed, I believe the prey birds actually like to see hunters appear, makes birds flush and land somewhere the predator can get them. Like was said before, just another noise to announce your presence, I thought about using one when I was young, but didn't. If you try one, let us know what you think. On a different note, when I first moved up here many years ago, I thought all the eagles, both golden and bald along with the wintering snow owls were so neat, they still are, but DAMN, they are a pheasant killing machines.