I hatched a couple of eggs from my Swedish duck pen and thought "these look so different from any others they've given me ---really different". I raised them and kept watching them, thinking these two just don't look right. Well, I finally figured it out. I have a black East Indies bantam drake that just roams around (flies around, he's a good flier) where ever and he must have gotten lucky with one of the blue Swedish girls. He is so darn tiny, I didn't think it was 'physically' possible he could mate a big duckgirl. The 'grown now' ducks are dark blue, have black bills and feet, and small or no bib, but they are full-sized. I know 'where there's a will, there's a way', but it was funny that I didn't even consider the BEI guy as a potential father. I might have thought of it sooner if if the ducklings had been small, but they are as big as the Swedish. They are both really pretty, but obviously not Swedish!