How can you tell which duck is laying which egg? I am getting some nice sized white/light tan eggs and also some (chicken sized) green eggs. I don't really know who is laying. I think all my females are old enough to lay now. I have a Black Swedish, 2 Blue Swedish, a Muscovy and a Mini Appleyard. I thought my Muscovy was laying small white eggs last fall, but I am not finding any small white eggs now. Whoever is laying the eggs is being sneaky about it. I found 7 of the big white eggs in a nice little nest. Felt bad about taking them, but none of the ducks seemed to be sitting on the nest. Do they keep laying til they get as many as they want before they sit on them? I am pretty sure one of us gathered eggs in there house a few days ago and when I went in there this morning there was 13 eggs! Is it safe to assume all 3 Swedish are probably laying the larger white eggs?