Assertion: hummingbird's feeder | /r/HasProperty | empty
Facets:
Source sentences:
text: They usually do this when the feeder is empty and they’re trying to tell the human the feeder needs to be stocked again.
text: When hummingbirds grow accustomed to using outdoor feeders, they may become slightly aggressive when the feeders is empty or while they are waiting for it to be filled and rehung.
text: If the feeder is empty, they come looking for you.