Assertion: duck's tail feather | /r/HasProperty | straight
Facets:
value: in females
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.