My ducks are about 6 1/2 months old. I have two mix breeds (Khaki/Cayuga) one male, one female and two pure Khaki's one male, one female. The mix breed female started laying about a week before the other pure khaki did. (About two weeks ago) She has laid one consistently since then. The pure Khaki has laid three that I know of and it's been: lay one day, not the next, lay another, not the next, ect. No when I get up I see she is sitting on the two that her and the other female laid this morning. Should I let her do her thing and sit? I live in Maine and we have harsh winters I don't know if it's a good idea for the little ones. They will be fertile for sure...no doubt about. Help please! Also, My female mix will often get on top of my pure khaki female in the pool and attempt to "do what the boys do". She tries once then get off of her and they just keep playing in the pool...is this normal???