Years past when I had ferrets as well ,the kennels were back to back against the ferret court .One terrier ,willow an NS x my stuff bitch would bark to be let in with the ferrets first thing in the morning ,she adored them . Ferrets now gone as there’s none or very few rabbits here now .Kennels are individual though all dogs let out daily .They spend sleeping time all in one kennel ,the very best heating system if they get on .