My 6 chicks are about 6 months old. I've been letting them out of their run for some free time daily since they were tiny babies. They normally stay in the horse corral or barn. I began unsupervised free time months ago and I would check on them periodically. Well yesterday around 3 I let them out and went inside. About 4:30 I went out back and not a chicken to be found. I'm calling "come on girls" while shaking the mealworm bag, nothing. I jump on my bicycle mealworm bag in hand and go around the corner. They were in a neighbors wooded yard and came running to me thru the broken fence. I grab one bike back home, thru her in the run and when back. Grabbed the 2nd chick biked back and thru her in the run. This time I went back on foot thru the back of my yard shook the bag of treats and the 3 girls followed me to the run. Well that left my skittish Golden Laced Wyandotte still running loose. After a failed attempt to corner her and catch her I figured she was raccoon food for sure. Over an hour of trying to coax her around the fence she finally squeezed under the fence where I dug a hole for her. Tonight I secure the perimeter no free range till further notice, chickens on lock down!