i'm not sure though. i let them range during the day and so sometimes my chickens go into their coop. but i coulda swore i saw one of them sitting on it this morning and get off of the egg when i went to open their coop. this is my first time keeping ducks so i'm not really sure how to tell duck eggs apart from chicken eggs. (so pathetic. LOL) anyway, do ducks lay pullet eggs like chickens? are they bigger than chicken eggs? and do they have bullseyes just like chickens when it's fertile? thanks!