Don't come out of coop much

[moeell1]

My girls are about 10 weeks old, they have been in there coop for about 2 weeks now, they come out of there coop into there yard but not much, they don't go to far from the coop either, and there yard is huge! The chickens i had before this never where like these are, they are skid-dish and would rather hang in the coop even on a beautiful day.