Hi everyone! My flock is currently 2 black Australorps and 2 production reds that are all about 1 year old now. I really enjoy watching them and sharing their eggs. I have room for two more birds and these are the hatchery stock breeds I can choose from: Black Australorp Jersey Giant Red Sex Link Production Red I was thinking of trying the RSL but I've read conflicting experiences with them. Some people say they are not cold hardy, some say they are. (I live in USDA zone 6 so it's not terribly cold but it did linger in the teens this winter.) Some say they burn themselves out early and have short lives while others had long lived birds. I'm guessing the variations come from the different combinations that can make RSL and the parentage of these are unknown. I love the look of BA but have found them to be timid but great for winter laying without supplemental lighting. I've read that JG can get big (though questionable with hatchery lines) but their egg production isn't as steady as BA or PR. Of the listed birds, which would fit best into my little flock? Are there other factors to consider that I've missed?