Hi- An old farmer gave me these ducks. The dark one is the male Rouen but i'm not sure what the females are. I'm getting one duck egg a day and the male is protecting his girls. I'm supposing these eggs are fertile even though she's off the nest the moment she lays them, I've seen her. I know they lay a clutch and then go back and set them. I'm collecting them every morning right after lay and incubating them for fun. I would like to know what breed the girls are, how long they will lay for and in Vermont, it's going to get below zero tonight so I can't leave them for her in the barn in the hay to come back and set on and hatch herself. It's to cold, right? Thanks for any information!