I have a silver spangled hamburg who is impossible to catch. She is petite and fast and even fullgrown can fly quite well. She is also quite wild compared with the other breeds I have and heads for cover if a leaf drops from a nearby tree. Her eggs are a bit small but she lays six a week. I recently had a stray dog get over my backyard fence and she escaped without a single feather out of place. If I were you I'd look for fast chickens, not fierce chickens.