Assertion: resident hummingbird | /r/CapableOf | spot intruder
Facets:
Source sentences:
text: When a resident hummingbird spots an intruder, it may raise the volume or quicken the pace of its songs and calls to advertise and strengthen its territorial claim.
text: When a resident hummingbird spots an intruder, it may raise the volume or quicken the pace of its songs and calls to advertise and strengthen its territorial claim.