I believe the barred lavender shank color are on the light side of slate, but still they are slate... would love to see a Lemon Cuckoo Ameraucana..It will work.As a plus the lavender cuckoo or barred will not have leg color issues.Not sure why.Welcome to the project.
Hens go broody when you don’t want them to… and won’t go broody when you do.
