The next chicken swap is in Merrimack on Saturday but I'm not sure if what the other vendors will have for older ones. July 7th is NH Chickenstock (there's a different thread on this). You may be able to find some there, they have a wish list as well. If all else fails PM me and I'll let you know what I have that's off of heat as I typically have several 4-6 week old sexed females ready to go.
Thank you
