Looks to be around 4 or 5 yrs old. Fat stocky black cat - looks like the perfect "mouser". It keeps coming into our backyard and has gotten as close as sitting outside the coop door on the temporary exercise pen watching my bigs in the run. It has a tag and collar. I think it must belong to the renters two doors down. What is the likelihood it will try to hurt my chicks? Is it more likely just curious? How likely is it to get into my run/coop? My WL roo crowed this morning and I noticed it hightailed away - but how much of a threat is it really? My flock: My chicks are (2) 16 week old White Leghorns - 1 is a pullet and 1 is a rooster, (3) 13 week old pullets and now (8) 4 week old babies ((5) lavender orpingtons + (3) silkies). So far I haven't let the 4 week olds out of the outdoor brooder that is inside my coop. However the goal was to get them outside this week and put them in the exercise pen for about an hour each day to get used to colder weather & enjoy playing while the older chicks are free ranging. We are outside with the chicks when they free range. So far I haven't let any of them freerange without supervision - our houses are close together and I wouldn't want them venturing into my neighbor's yards. Coop/Run: I have attached with poultry staples 1/4" hardware cloth on the run door, 1/2" hardware cloth around the base of the run to about 2.5' up the sides. 2x4 welded wire on all sides. and a combination of wires across the top. All overlaps are secured with hog ties about every 4" I also have a few zip ties in there from when I needd temporary holder while installig the fencing. My run door is secured with 2 sliding/locking bolts and 1 hasp with keyed locks on each. There's no other entry into the run except under the perimeter that is buried about 1' deep and has soil around the sides and a series of leftover cinder blocks sitting on top of the soil in the back of the run that is least visible from the house. Here's a recent pic of my run/coop area. The exercise pen for baby chicks no longer has that wood on top of it - but that is what the cat was sitting on. And only one of those roosters is still around. Here's my current outside flock. Here's an older picture of the back of the run/coop before the run wiring was finished and the sand laid. If it's a threat is there anything I should do to further secure the run from this predator? Here I am worried about the occassional raccoon and fox in the area - never gave cats a second thought until now.