Hi there!
We keep a mixed flock but we have a pretty large flock and multiple breeds. They live and free range together daily unless we separate out a breed for breeding.
We have 2 large coops(one of which is an old converted 2 room milk house), a covered 3 season run, and small tractor coop. We plan to add a couple more tractor coops of similar and larger sizes.
We have a number of breeds with additional oddballs. We have English Orpingtons, a few colors. Silkies, Cream legbars, EE, SLW, a project breed, Buckeyes, Dominiques, and oegb. We have mostly only sets of 3-5 girls of each breed except more English Orpingtons. We will be weaning down some of the flocks this year but plan on hatching others too. We also usually have one hatch a year of barnyard mixes depending on when the local schools contact us for eggs.
Right now I don't have a breeding oegb rooster.
We have a pair of Dominiques
4 buckeye pullets(hens next month) and am still choosing the best cockeral for them.
Etc etc. I love having multiple breeds they all have their own unique ways.