What age will chicks be OK climbing up a ramp to the coop. Coop is 3' high and the ramp at a 46deg angle. They are currently shut in the coop with mama hen, but she wants to take them out and about. Also, what do I do about food if they do go out with the others. The big girls have layers mash. I can't get growers mash, only pellets which they don't like too much. I also feed them some home mixee food (mixture of grains, seeds and pulses) but would the chicks be ok with that. The chicks look a bit small for the chick grit I've got. The chicks are about 1 week old and include a bantam.