My hens were all born either this last spring or summer so none of them are a year old yet. It looks like some of them are molting, and some of them aren't. The ones who are molting seemed to have started their molt kind of late its more winter now than fall. Do pullets commonly molt in the 1st year? We've been powdering the hens every two weeks the last six weeks or so because I noticed that a couple of the heavily feathered girls had some poultry lice and a few eggs. It was only a couple of the hens and the rest were clean, but we cleaned out the whole coop and powdered everyone and dusted the nest boxes and interior of the coop just to be on the safe side. My question here is, I haven't seen one single lice on any bird ever since the first dusting, but some of the hens still have egg sacs on the base of the feather so we've kept dusting. We already decided to keep dusting the girls periodically as a preventative, but the egg sacs are bugging me (no pun intended) even though I can't find any living lice and I have LOOKED. Will those just never fall off until they molt those feathers? Thanks for taking the time to answer my questions!