Do they sit on your eggs for you?
Yes, they love to be broody. It's early spring here in NZ and I already have a broody OEGB. I'm hoping she'll keep sitting until I can hatch a few ducklings for her to raise. But she started sitting just after I set them, so we'll see. I might give her a live duck egg to sit on as that should keep her sitting and hope it hatches around the same time as the ones in my incubator.