They are aonly outside for the early part of the day to dustbath and eat morning-noonish bugs/range. Then are put back into inside grow pens till evening. Reason being, we are in process of making new pens, and I have a 20 x 40 heated and air facility, so they have limited time outside. No one else except the 2 pullets have this color coming in with white 'mottled' pattern. Weired...still scratching head??