Shad himself would tell you it is possible to keep mixed breeds, but not optimal. We've had this discussion many times simply because I have one of the oddest, most mixed flocks going ~ without any of the issues Bob faces. However between Shad's advice & Bob's issues when I had the opportunity to add several beautiful Polish to my tribe I turned them down. I don't think Bob will take Shad's advice amiss. They too have had this discussion several times but ultimately the decision is Bob's. Like RC I think, with time, Bob will have a Polish sub~tribe without having to rehome completely. I certainly hope so as Bob has such a bond with Phyllis & Sylvie but what is to be admired in Shad's comment is that he has put the chickens' well being first. Most of us don't. We love & care about them but put our feelings above what might be better for the chickens.@Shadrach
Same as RC.
Plus, just to add all three of my chickens are different breeds except for my new girls who are now fitting perfectly.
It looks like they switch too their duties daily, princess on the look out one day Agatha the next and today I noticed it's flexi with the cat.
I find that so cute.
I can't speak for other breeds and I know from experience that us humans are no where near perfect when caring for chickens...
I've recently met breeders and rescuer's and I now wouldn't bath a chicken I've learned better but the breeders still do.
We are not perfect as I've already stated and going on opening up wounds is not helpful or kind. I'm a strong believer in saying as it is but only to a limit!.
To be perfectly Frank with you I think Bob has had enough emotional blows as it is, don't you.