Cats keep eating snakes in the yard....

[Unsung-melody]

I didn't know where to put this post so I placed it here. Feel free to move it if there is a more appropriate location.

I keep finding disembodied snakes in my yard. I'm assuming they are brown snakes, very common to Louisiana, especially where I'm located, but I can't be sure. The cats eat their heads and half the bodies and leave the tails. Should I be worried about it? I mean, I feel sorry for the snakes, but I don't think it would be right to lock my cats inside just because they act on their natural instincts when outside. Then again, I don't want them getting sick, either. What would you guys do in this situation?