So, I live in an urban area. Surrounded by houses, never any signs of predators. But then about a month ago, a hawk out of nowhere swooped down and ripped my favorite little ohikis head off. And then this morning I went out and I was looking for my favorite cochin, Thumb. I looked in his cage and his body was there, with the head PULLED OFF on the ground and feathers everywhere. What can it be? Not a hawk right? And if so, can I kill it with a pellet gun?