Thanks again for all of the great advice! Our chickens are 7 weeks old. We have one Wynadotte, one Buff, two Black Sex Links and two Rhode Island Reds. The can go up and down the ramp fine, they just like to be under the coop! I will just continue putting them in at night until they get the hang of it and if that doesn't work I will put them in there for a couple more days. Thanks everyone!