I have 4 fertile canary eggs waiting to hatch, can I keep all the chicks in the same cage after they fledge? Even if they’re mixed gender? I’ve seen people have 4 or 5 canaries in a large cage. If I did, would the males still fight and hurt each other? Otherwise… I dont understand how people sell canaries, every breeder i have seen has quite a few canaries in a cage, and they all seem healthy.