My question is, do mallards always lay greenish/blue eggs or will they lay white ones? I'm asking because I have a 9 month old pekin whose been laying for about 4 months now. She's been pretty consistent laying almost every day even through this winter. I also have a 9 month old runner and an 8 month old mallard who have not been laying yet. For the past three days now I've gotten 3 duck eggs each morning, but they all look exactly like the pekin eggs. I'm not sure who else is laying. The pekin lays a good sized egg and the other two eggs have been smaller in size but the same white color. I wouldn't think that the runner and mallard would both start laying the exact same day would you? I'm assuming that the runner has started laying and she's just not on a normal schedule so to speak. Could she be laying more than one a day until she gets regulated? I'm very happy with 3 eggs a day but I'm puzzled as to where they're coming from. Any thoughts on this?