It entirely depends on the cat. We once had a cat that would often take out wild ducks and I'm pretty sure would mess with Canada geese. Most of ours leave the chickens alone being used to them from kitten hood. But some have taken out full grown chickens.
It's always good to be safe and not sorry and it sounds like an amazing run. Just a suggestion, but you might want to double check your mesh for the top. If it's too thin the hawks and owls and such will just tear right through.
I noticed about three weeks ago that one of my Rhode Island Red chickens was looking mopey until just a few days ago when she all of a sudden got sick. On checking in to it I noticed small black bugs scurrying around at the base of her feathers. The feathers also looked rotten at the base. I...
(1) Are you new to chickens / when did you first get chickens?
I got my first chickens about three years ago.
(2) How many chickens do you have right now?
I have about seventeen chickens
(3) What breeds do you have?
I have twelve brown hybrids and five Rhode Island Reds.
(4) How did you find...