I have 4 Blue Andalusian birds in my grow out coop now. They are almost 11 weeks old. I have been reading up on this breed and I am concerned about them being flighty. At 15 weeks I will let them start to free range on our acre of land. I have a flock of 8 other chickens, a mix of breeds. I was wondering if I should clip their wings before I let them out of the coop. my fencing is 5-6 ft high.