For anyone that free ranges various breeds in a common farm yard environment and have some desire to keep at least some pure bred examples of various breeds, do you find that its doable? Here’s my situation. I have the following breeds: 13 “Florida Cracker” games (see my thread on Jungle Fowl in the SE for an explanation of the term, the short answer is they’re likely either Spanish games, American game bantams, or hatchery jungle fowl), 11 hens and 2 roosters. 9 hens free range with 1 rooster. The other rooster is penned with 2 hens and those three are separate from other chickens. 6 white leghorn hens, free ranging. 6 silver laced Wyandotte hens, free ranging. 6 Old English game bantams, 5 hens and 1 rooster, all penned together but separate from the other breeds. As the OEGBs and a set of FCGs are penned on their own, they can only reproduce with themselves. And where the only free ranging rooster is a FCG, those free range hens will produce either pure bred FCG, FCG x leghorn crosses, or FCG x Wyandotte crosses. The offspring are easy to tell apart as are the eggs. So far I’ve only made pure bred FCGs, pure OEGBs, and leghorn crosses and they’re all easy to distinguish as chicks. Here’s my concern: I’d like to make and free range a flock of OEGBs. About 10 birds or so. Yet the OEGBs and FCG eggs are identical looking. Although I think I can easily separate chicks out at the point of hatching due to the varied coloration of the OEGBs, I’m concerned about the inevitable crosses between the FCG roosters and OEGB hens. I am concerned that their offspring won’t be easily distinguishable and that the next generation afterwards definitely won’t be as the crosses get bred back to FCG roosters again. I don’t mind having mixed breeds. I just don’t want the mixed breeds to pollute the genetics of my pure bred chickens, namely my FCGs. I know that if I mix breeds in the barnyard, it’s inevitable they’re going cross breed. I suppose I’m asking if there are ways to increase the odds that one will end up with at least one desired pure breed flock among a group of many breeds? For example, should I aggressively cull cross breeds between the OEGBs and FCGs before they reach maturity? Or is the OEGB genetics so diverse that they will likely always produce offspring that look different and can be distinguished easily from the wild colored FCGs? Or should I resign myself to the notion that my flock will all be mutts in 10 years and I should only trust in the penned birds to give me pure bred stock?