Assertion: cockatoo's bird | /r/CapableOf | rub its head
Facets:
value: along its feathers
type: LOCATION
value: on the base of its tail
type: LOCATION
Source sentences:
text: Birds can make their feather water resistant by rubbing oils from their preen gland onto their feathers, which is why often see a bird rub its head on the base of its tail and then rub its head along its feathers.
text: Birds can make their feather water resistant by rubbing oils from their preen gland onto their feathers, which is why often see a bird rub its head on the base of its tail and then rub its head along its feathers.