I moved my Ameraucanas from my marans roosters to a pen with my new Ameraucana rooster, so I can start producing pure Ams, rather than olive eggers. They've been with him for about 5 days. I've seen first hand that a hen can retain sperm for up to 3 weeks (thought I would be hatching pure black Jap bantams, but they came out big ole frizzles!), but what are folks' experiences with a new roo 'overpowering' the old roo's sperm? Thanks!