Are you getting a chick? Or fully grown girl? Bantam or Large Fowl? Why not two? LOL. Watch out as they are very docile and your other hens might pick on her, especially with her top-hat (crest) Hopefully she will fit right in though. But please do keep an eye on her, they tend to be the bottom of the pecking order.
Other than that, they act like normal chickens, are fun to watch. I have a nice little clan of girls with one boy, so they don't hang out with others of another breed. They don't seem to like to roost, but I'm building them a new larger (wider) roost low to the ground and am hoping they'll use it. They keep sleeping in the shavings
Oh, and they do seem frightened at everything, but are ok once you pick them up. Having said that, they tend to freeze, so are easy to catch. Mine still can mostly see through their crests. Either because they're still so young (15 weeks this week) or they've picked some of their crest hairs out?? Not sure.
The boys are very loud. My bantam has a higher pitch voice but it pierces the air effectively, LOL. None of my girls have started laying so I can't say how often I'll get an egg. I hope with 8 hens, I'll get enough, even so they'll be smallish.
They are supposed to take confinement well, and since I was so slow getting their coop finished, they were cooped up in a brooder a long time (with only sometimes getting to go out and play). Their space was about 11 square feet (yikes) Probably a little more than that actually, more like 15 or so, for 9 bantam birds. It was tight but they never fought. Now they have lots of room and soon I'll have the run finished (yah right, LOL) So they really do take to confinement well. Their foot feathers tend to break with free ranging, if you want to keep them ready for a show, you need to keep them on clean shavings
Gosh, anything I missed, please ask. I'm happy to share what I've noticed as when I started with them I knew nothing and was eager for knowledge!
I'd like to suggest getting a few just in case she can't live with the others, then you can at least keep them in a separate space where they have each other?