How old are the chicks when they usually learn to return to the coop by using the ramp? It has been since last year since I had chicks and I can't remember? Mine are 8 week old now and they come out of the coop, using the ramp but we have to gather them up for them to return at dusk. I don't let them out when the weather is bad since I can't depend on them returning on their own. They are fully feathered.