Integrating pullets with existing, older chickens - should we build a temporary coop?

[Crazy Maizie]

If the point is to get them to sleep in the coop, the enclosure needs to be inside the coop. Mine's pretty simple, a rat cage on the floor:
View attachment 3857845

No the chicks won't like it. But so far mine seem to have figured it out pretty quickly afterwards, that they need to return to the coop at night, even if they need to be manually caged up until they figure out how to roost. But once they figure it out:
View attachment 3857846

Whats the black stuff going up the bottom of the posts?

 

[rosemarythyme]

Whats the black stuff going up the bottom of the posts?

BlackJack 57 to seal and protect the wooden floor. You can see it more clearly here, when it was newly applied.

 

[Crazy Maizie]

BlackJack 57 to seal and protect the wooden floor. You can see it more clearly here, when it was newly applied.

Thank you. I thought it might be something like that.

 

[Granny23]

If you have room in your coop for a cage or a crate, that would be my first option. Or partitioning a section of it off would work as well. Because they do need to learn to co-exist in a coop sooner or later.

I have 4 babies that are 8 weeks and 4 hens that are 2-3 yrs old. We hand raised all the chickens in the house and eventually they go outside. I put up a small pen inside an large enclosure I added to the coop and covered it because they were flying over it. The hens can see the babies but not get to them. Later in the day I close the enclosure to the hens and let the babies out so they can explore.
I am definitely looking forward to their integration with the other hens.