Pekins are the most common domestic duck worldwide. The adults are pure white and the ducklings are a cute yellow. They are a large, hardy breed with excellent egg production if managed properly. Pekin ducks in North America are fairly horizontal in stature. Pekins in Europe, however, are very vertical in shape almost Runner in carriage with very short necks. If fed a diet high in corn or alfalfa, the beak and legs in Pekins can become very bright orange in color. As the hen lays, though, she begins to lose that orange color as it is used in the coloration of the yolk of her eggs. Oftentimes you can determine which of your Pekins are laying the best as they will have the lighter, more yellow colored bills. As time goes on, Pekins will often get black splotches on their bill. This is of no harm to the ducks.