Well, mine only seemed to catch mice and worms, snakes when they were chooks and not now. We are overrun in the upstairs of the coop with mice. We are about to try to "de-mouse" the old house.
I am glad they don't as you never know what desease the mice might be carrying??
if you all haven't had any problems with them "catching" anything from the mice then loan me some of your hens to "train" mine!! I walked in the coop yesterday and stopped ...
I could hear LOTS of mice running in the upstairs. creeped me out!!