I'm sure you can mix and match colors. I have read that the darker colors have longer laying seasons. I cant speak for anyone else but I have the helmeted breed and they do very well in cold weather. I had one that didnt go in one night. It got down to -17 F. My hubby and I both went out several times trying to roost her out of the tree and she wouldnt budge. She made it through the night with no frost bite, I was so suprised. Oh I forgot to add, you can hear guineas from alot further then 350 ft. I have neighbor that both have them and they are just over a 1/4 mile away on both sides. You can hear everytime they chi chi. Just talk your neibor to getting some too then neither of you can complain.

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