Assertion: hummingbird's foot | /r/ObjectUse | used for perching
Facets:
value: mainly
type: DEGREE
Source sentences:
text: The feet of hummingbirds can be used for only perching and not for walking or hopping
text: While hummingbirds are adept at flying, their tiny legs and feet are less useful and are mainly used for perching.
text: Hummingbirds have very tiny feet and legs, which are only used for perching.