I have three in my tractor: Golden-laced Wyandotte, Black sex-linked and what was supposed to be a white Plymouth Rock but turned out to be a mixture. She's golden colored but has some feathers on her feet and black neck feathers. They get along just fine. Interestingly though, only the black sex-linked has been producing eggs despite the fact that they're nearly all the same age. Black sex linked stopped producing when it got cold but is now laying again. The others just eat... and eat... and eat... and eat... I don't have the heart to cull them.