Assertion: duck's characteristic | /r/HasProperty | male
Facets:
Source sentences:
text: Most true ducks, including a few inaccurately called geese (e.g., sheldgeese) by reason of size and build, also differ from swans and true geese in the following characteristics: males (drakes) and females (hens or ducks) exhibit some degree of differentiation in plumage and in call, males molt twice annually, females lay large clutches of smooth-shelled rather than rough-shelled eggs, and both sexes have overlapping scales on the skin of the leg.