Assertion: raven's feather | /r/CapableOf | cover the base of the bill
Facets:
Source sentences:
text: On both birds, short feathers cover the base of the bill, but ravens have much more extensive feathering that extends nearly halfway or even further down the length of the bill.
text: On both birds, short feathers cover the base of the bill, but ravens have much more extensive feathering that extends nearly halfway or even further down the length of the bill.