Ok, I've been around chickens almost 50 years (ok I don't remember the first ten or so) but this has me stumped. 1. About two weeks ago I go out to lock up and there is one of the hens on the floor of the coop walking around and worrying herself sick to find a way up to the roosts. The roosts start at about 30 inches off the floor. I bend down pick her up set her on the first bar and she goes to jump to the next bar up and falls straight to the floor. HMMM. I do it again and sure enough the same thing happens, I noticed that she appeared to make no attempt to flap her wings when she was headed to the floor. I pick her up, hold her under the wings and tilt her backwards. No wing flapping which in not normal. In the morning I watch her closely as she comes off the roost and splat, no wing flapping. This went on for a few days and she is now back to normal. She is up on the roost every night when I lock and I even had picker her up and dropped her to make sure her wings are working and they are. 2. I now have another hen that has these same symptoms for the past few days. Any body have a clue what I am dealing with?