Hello all! I have been browsing your site for months before I decided to purchase three Barred Rock chicks back in April! They have been such a delight to raise and watch them grow into young adulthood. I converted an old rabbit hutch into a coop and the girls are loving it. They are now 17 weeks old and I have noticed since I moved them out of the brooder into their coop that they tend to stay on the roosts until almost 9am! I thought chickens were up at the crack of dawn ready to start the day, but these girls prefer to sleep late! Is this anything to be concerned with?