I recently discovered 2 hens have feather loss on their undersides, all the way from the top of the keel bone down between their legs. These are English Orpingtons, extremely fluffy, so nothing appears amiss until turning them on their backs! One hen (the one shown) also has what appears to be bruising or red marks around her keel. Both of these hens have recently been broody and I've noticed a few feathers around, but nothing crazy. One of them had lice, and I've treated everyone. Do you think this feather loss is related to the lice or the broodiness? Others who had lice but were not broody have no feather loss. Also is it normal to have completely featherless strips under each wing? Thanks!