One is a rooster that someone tossed over the fence. Something about his beak conformation causes the upper beak to grow *well* past his bottom beak, which makes it very hard for him to eat. One is a peahen that hatched with a funny eye which eventually atrophied, so now her beak grows oddly. I should get some pictures of that one. One is an old rooster that doesn't peck and scratch the ground like he did when he was younger, so his upper beak gets a little long. The feed store I used to go to had one peahen and two turkeys that would grow too much upper beak, so I trimmed those. Surprised you have seen so many with issues because I have trimmed many and have never had a problem.