Hello, I am a new backyard chicken owner. I have 4 EE's that have been laying since late July, They are mixed with 1RR,1 Australorp, 1 Barnvelder and 1 Golden Buff that are about 14 weeks old. They are eating Purina's flock raiser with free choice oyster shells and about one handfull of scratch each day. I let them freerange in the backyard for about an hour every other day. It has just dropped below freezing at night for a couple of days. Today I noticed that the smallest of the EE's has something wrong. Behind and under her wing it looks wet and almost like mange. As I was watching her she pecked at it a little bit and one of the other EE's pecked at it a little. I don's see any blood. They have plenty of room the coop is 4x8 and the run is 8x10. Any Ideas on what it is / what I need to do. Thanks.