We have 5 feral cats that roam about here every day and all through the night. So irritating. They also infest the yard with fleas that are now impossible to get rid of and I'm concerned the chickens will become infested with fleas as well. We had two vet emergencies last year due to our dog eating cat feces left in the yard. I was scooping up what I could find every day as I also scoop the dog poop. I scour the yard everyday looking for bird remnants. We heard two cats in what sounded like a horrible fight out in front of the house at 3 AM the other morning. Cats are a nuisance and I can't understand why people with cats cannot contain them in their house or be more responsible. Sorry to all you cat folks out there but they truly are flea magnets, according to our vet.