Pomeranian Goose
Pomeranian geese average 15-17 pounds and lay 15-35 eggs annually. Northern German farmers developed the Pomeranian goose. Literature references date its origins to as early as 1550. The Pomeranian is the only descendent of the European Greylag specifically bred for a single-lobed paunch (Ashton, 1999). In North America, however, Pomeranian geese often exhibit two lobes due to crossbreeding and genetic variations.
http://www.albc-usa.org/cpl/waterfowl/pomeranian.html