One of my domestic ducks has been slow in the morning sitting on the eggs before joining the others outside. This has been going on periodically for about a week. She remains on the eggs for about a half an hour then joins the others. Today she has not gotten off the eggs yet and it has been 2 and 1/2 hours. Is she trying to be a mom? I heard most domestic ducks do not try to hatch their eggs is this true? All of my ducks are about a year old. 2 males and 3 females. Khaki Cambells, and I think the females are anconas? (spotted).