Our pair of Blue Swede cross have grown up together. She is laying on a large nest of 20 eggs, and moves this nest completely (all the eggs, and the entire nest) a foot or so, every week. Is this normal? It's been about a month. And, my hubby is afraid that our very assertive drake may kill the ducklings when they hatch. So far, his assertive behaviour is limited to pecking our feet that are wearing black or brown shoes, and aggressively mounting the girl when she leaves her nest to join me for a walk, for excersize and then she goes for a swim/preening bath . He does not chase her off the nest to mate, as far as I can tell.