Assertion: hummingbird | /r/CapableOf | survey their territory
Facets:
Source sentences:
text: Hummingbirds often perch to rest or survey their territory; some spots should be in the open and obvious for territorial birds, while others should be in protected areas, hidden from view and buffered from any cooler overnight temperatures.
text: They perch to rest, to preen, to sleep, or just to survey their territory.