Hi... I have a pair of runners just over a year old. The young lady started laying early this Spring. About 2 weeks ago she started sitting on eggs and only coming off the nest for about 30 minutes a day far as I am aware. Is it likely she will successfully incubate her eggs as I've read that runners are not particularly broody. Does (did) she quit laying at some point? How many eggs could she likely be sitting on? And perhaps the dumbest question.... does she know if an egg is fertile? Should I eventually see some ducklings, is Mama Duck equipped to deal with youngsters or might I need to intervene and help out? Thanks in advance.... Gary