I bought some chicks today and was thinking if i happen to get an unwanted roo could i just get a younger chick to replace it with. The only thing is I don't know how much of an age gap baby chicks can live together with. Also I dont know how long it takes to sex the chickens that i'm getting or how to, if it helps ill tell you there breeds. I have 2 golden laced wyandottes, 2 golden comets, and 2 barred rocks. Any advice is welcome.