This is my first time raising meat chickens. Cornish Rock cross. From the time they were 3 days old there breast and abdominal regions from under the wings down have been naked. The same for all 24 chicks. They seem super healthy. Drinking lots of water and eating lots of food. They are now 4weeks old and big. Still seem perfectly healthy. I want to put them outside in the tractor but not sure with no feathers. Is this normal for this type of chicken?