I figured they wanted to get out and explore a bit. I've been letting them out during the day while I'm home for about a week now. Today was a good reminder why I originally knew it was a bad idea to do this. Got home around 11 from a dentist appointment. Let the chickens out. Go inside to put my hair up in a ponytail because it's mega-windy outside. While I'm in the bathroom, I hear a strange noise. At first I think it's my 4-year-old DD trying to imitate the chickens. When one of my cats suddenly looks alert and bolts for the back door, I realize it's not her and I follow. I get outside and all of the chickens have high-tailed it into the coop... and then I spot the array of feathers blowing all over my backyard. I go in to do a head count. One missing. And then it dawns on me which one it probably was, based on the feather colors. I had one hen that had crooked toes on one of her feet. I had hemmed and hawed over culling her, because I wanted to ensure that deformity never got passed on from her genetics. The bummer is that she was probably the most curious little hen, and followed me around last week while I was cutting all of the weeds and small trees to make room for the garden. I guess my choice has been made for me. When I stepped out of the coop, I spotted the neighbor's hyper-active Siberian Husky in my yard. I call him over and inspect him thoroughly and do not see any blood, or any other indication he might have run off with the bird. I suspect that due to the lack of blood or body, it was a hawk, falcon or some other sort of bird of prey. The dog has refused to leave my yard ever since. I believe he either heard or saw the attack and is trying to protect the rest of my chickens, which are all locked back up in the coop. So, as soon as the weather stops being so darned cold and windy/snowy/rainy, I will be majorly expanding my run.