As for getting the new bird in with the others I think there are three parts to it. Chickens hate strange places and changes.
The main coop will be strange, the new bird and the main flock KNOWS this bird should not be there. The first thing I do, is let original birds out and lock them out of the coop/run. Lock the new girl in the set up. This allows her to explore the area without being chased. They can find hide outs, feed bowls, explore the coop. This gives confidence. Feed along the fence line. Near dark, put her back where she was, let the others back in. Repeat the next day.
Third day, leave one bird in the set up with her, the others out. There will be a little bluster but should settle as it is one on one. Repeat this with the same bird two to three days.
Then let everyone out in the yard, if all goes well, they should all go to roost together.
It is a lot of dinking around, but you don’t have to build anything. I have had good luck with it.
Mrs K
The main coop will be strange, the new bird and the main flock KNOWS this bird should not be there. The first thing I do, is let original birds out and lock them out of the coop/run. Lock the new girl in the set up. This allows her to explore the area without being chased. They can find hide outs, feed bowls, explore the coop. This gives confidence. Feed along the fence line. Near dark, put her back where she was, let the others back in. Repeat the next day.
Third day, leave one bird in the set up with her, the others out. There will be a little bluster but should settle as it is one on one. Repeat this with the same bird two to three days.
Then let everyone out in the yard, if all goes well, they should all go to roost together.
It is a lot of dinking around, but you don’t have to build anything. I have had good luck with it.
Mrs K