I'm also having some challenges with my first flock. Four 10 week old pullets.
I got them 3 weeks ago, when they were 7 weeks old. 2 buff orpingtons and 2 cochins. They were all kept inside in their brooder till yesterday, because the coop wasn't finished. We are making it from recycled pallets.
Yesterday we moved them into the coop. I intend free ranging them, but realise I need to keep them in the coop for a while so they associate it with being safe and will return there in the evenings.
Anyway, the chickens are now 10 weeks old, and the coop is finished at last so we put them in the coop yesterday in the upstairs "bedroom" part. After about 5 hours in there, I tempted them to come down the ramp to eat, They half flew, half skiddadled down the ramp. But now they won't go back up into the bedroom! Last night they slept all in a pile on the floor in the downstairs part.
I have tried tempting them up the ramp with treats, but to no avail. I've tried picking them up and placing them on the ramp in an attempt to show them that's the way up, but they get so stressed out when I try to catch them (they haven't been handled much at all - my biggest mistake I believe) They immediately jump/fly off the ramp and run in the corner away from me.
Do you think they will get the hang of it by themselves?
Or would it be better to catch them and put them in the upstairs bedroom, where the roost is, and keep them in there for a while for them to get used to it and want to go there?
here are some photos of the coop so you have a better idea.