I got REAL lucky today!! after the sun came out I let the 4 little chicks out of the coop and into the run. Stood and kept an eye on them for a while, very humid out today (whew), all of a sudden I saw one of the smallest red ones, still pretty tiny at 5 weeks and 2 days old, jump thru the 2x4 mesh fencing. YIKES!! Luckily Big ol' Mousse didn't see it happen and I opened the gate and walked in, picked up the little chickie and dropped her over the fence. She fluttered down to the rest of them safe and sound, for now. I put them back in the tractor where they'll have to stay for another couple weeks I guess till they're big enough to not get thru the 2x4.