Please take a look at the below picture. I noticed today several feathers around the hen's neck are missing. I looked closer and didn't see any lice/mites nor did I see any blood. The plastic tubes are still attached and have bits of feather poking out the top. Is this just the way new feathers are grown or does it look like they are being pecked out by other chickens? The hen is a buckeye and relatively young - she's just now starting to fill out.