About 3 weeks ago I bought 7 layers (from the same flock) – 5 are white leghorns that are about 2 years old, and 2 are about 9 month old ISA Browns. The two browns are beautiful at all hours, have fluffy bums, and wonderfully curious and friendly. All of the leghorns seem somewhat ratty. Some have very bare primary feathers, and 2 of the Leghorns have constantly dirty bottoms. The other three leghorns have relatively fluffy, but slightly dirty bottoms (dry), but the two dirty ones are always slightly damp. Now, I’ve been feeding these guys fermented layer feed for about 2.5 weeks, so it should be chock-full of probiotics and protein. They also get 50sqft of fresh grass and bugs every other day. I’ve noticed that the egg shells have been thicker and harder in the past week (presumably from the change from dry to fermented feed). I’ve also made the coop bigger to make sure that they all have room to roost should they desire. Some prefer to sit on the floor (not sure which). Also, they are prolific layers. We tend to have 6-7 eggs every day, so I can’t imagine the chickens are too badly off if we are getting practically an egg from each every day. So, should I be concerned? I ask because it is quite difficult to actually catch these leghorns. They are very skittish and hide in very difficult places!