my daughter has just started raising poultry an has 3 palm 2narragansett an getting 2 blue slates.at what age can you sex them i know one of the palms is a tom because he puffs up an does a wing dance for the buff hen chicks.he is around 4 weeks old very cute.also if the all run together will they all cross breed like a palm tom with a blue hen?do i have to do any thing special to breed them in the spring or will the handle that themselves?also how much room should they have indoors an out i am going to build a 20x30 pen but have the room for them to free range as well do they stay close to home?or should i keep them pened?