Hello, Quick question. I just got 25 cornish crosses for the first time and they look a lot different from the dual purpose birds that I have raised in the past. They have areas on them in full feather, but in other areas- particularly their breasts and thighs, you can still see their pink skin. They are about 3-4 weeks old... Is this normal? Any reason for this? I have been turning their brooding lamp off during the day for a full week now... Thanks!!