How many roos should I rehome?
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One rooster will be plenty, but it's too soon to decide on which. Let them grow up longer and then decide, because temperament is the most important trait, and human aggression may take more time to surface. Cockrels who grow up together may get along fine, but you will need more pullets for two or more males. Watch the boys grow up, and decide a bit later. Frizzles are cute, but can't fly, so are much more vulnerable to predators, and getting up to roost will be hard. I wouldn't keep one as my only rooster. Mary
You may be okay with only two. You might not be. And the ones that you find oh-so friendly and cute, may turn out to be aggressive in another few months. To make a determination on temperament, which is really the most important factor to consider when choosing a cockerel, you need to keep them around long enough to see what affect hormones have on his personality. Even the most adorable cockerel can turn nasty, so don't use looks as your deciding factor.
Keep them and see! Just have a plan for any loosers that develop (human attackers!) because that can happen. Polish require some care to keep ice off the cute topknot in winter, and they can't see overhead, so are more vulnerable to hawk attacks. But they are also very cute! Sounds like you love the little fuzzy ones! Mary