thats great black cheeks are lovely we have some as well. it might be best to rethink getting the owl finches now as the zebs will become quite pocessive of the cage . they will sometimes pick on the less dominant owls unless they are put in at the same time ,even then you sometimes will see it . it can work depending on the cage size etc but i am trying save you any heartache if it did happen. any way whatever you decide good luck