Something was getting into mt chicken coop and eating the eggs. Its been about two weeks since I've gotten an egg, I noticed the eggs drop off after I found broken egg shells in the coop. Obviously the break in caused a lot of stress among the chicks. This is also the same time the molting began. The day i noticed the broken eggs, some of our alpha females feathers were ruffled and pointing in the wrong directions. Since then, she lost more and more feathers for a few days and now has large patches of feathers missing, she's probably 3/5 covered with feathers. The other two have had a bit of molting but nowhere nearly as much. I've since discovered where the pest (probably a rodent) was getting in, and I've secured the coop and run more heabily. Being relatively new to this I'm not sure the steps to proceed with going forward, the chicks are a little more than a year old. Should contact a veterinarian to have them checked out? How does stress affect a chicks egg laying abilities? Does molting of this magnitude occur regularly or could it be a disease or illness? What can i do to get them laying again?