Assertion: duck's bill | /r/HasProperty | yellow
Facets:
value: with dark green or black spotting
type: OTHER
value: in males
type: OTHER
Source sentences:
text: Its bill soon loses its dark grey colouring, and its sex can finally be distinguished visually by three factors: 1) the bill is yellow in males, but black and orange in females;[self-published source] 2) the breast feathers are reddish-brown in males, but brown in females; and 3) in males, the centre tail feather (drake feather) is curled, but in females, the centre tail feather is straight.
text: Evolutionary biologists think that mallards and other ducks have yellow or orange bills and legs to show off for the opposite sex.
text: The bill of the Magpie duck is yellow or orange, but turns green in older ducks.
text: The neck is normally solid white, bills are yellow with dark green or black spotting, and the legs and feet are orange with black or brown markings that increase with age.
text: The bill is flat and can be yellow, pink, black or any combination.
text: The drake’s bill is yellow while the duck’s bill is brown-orange.
text: The amount of white on the neck and head is variable, as well as the bill, which can be yellow, pink, black, or any mixture of these.