I have a mixed ages flock; namely 7.5 weeks and 13 weeks. I am looking for a feed to switch them to in about 3 weeks so that they can all be on the same feed as the older ones get ready to lay. I am on an auto-delivery from my feed store and am not wanting to change that since it means I don't have to go to the feed stores They sell Formax feeds which are produced here in KY and I feel better about that somehow. Anywho, this is the feed I'm looking at: http://www.formaxfeeds.com/specialty/gamebird_gc18.html or http://www.formaxfeeds.com/specialty/gamebird_gc16.html I've read here I think that gamebird feeds are ok to feed to chickens, but I want to see what you guys would feed. I want my girls to be happy! I will be offering free choice oyster shell to the older ones by their perches.