I have a Pekin and a black Swedish hen. The black Swedish just started laying about 3 months ago, the Pekin has been laying for over a year. I also have one Pekin drake. Well I haven't been collecting eggs as often as I did... And I guess my girls found a place they liked to nest at together, which made my collecting eggs much easier, but I was sick, husband was out of town... And working and while I was feeding the ducks 6 days ago I noticed a nice little nest all set up with 18 eggs!!! Now I am noticing the girls not only sharing the nest, but they are taking turns sitting on it. The only time those eggs are not being sat on is during dinner. I tried to collect the eggs 2 days ago and both of the girls chased me away... They never seemed to care when i took their eggs before. I wasn't planning on having ducklings, but I didn't know that ducks would share in brooding. So I might be expecting 18 Pekin, Pekin/Swedish babies.