What is the difference between a chicken moulting or being picked on. I have two girls I think are moulting but I noticed a different one picking on one that is moulting. Both of the ones moulting I think are going through mini moults. I was with them today and couldn't help but wonder if they are being picked on vs. moulting. The only thing that I notice is a small amount of missing feathers. Both around the rump. Edited to add: I don't have any roosters and only noticed today 1 was being "grumpy" with others.