Assertion: feather's bird | /r/CapableOf | grow special structures
Facets:
value: to make to each other
type: PURPOSE
value: during breeding season
type: TEMPORAL
value: on their beaks
type: LOCATION
Source sentences:
text: Some birds, like the American White Pelican, even grow special structures on their beaks during breeding season to make themselves more attractive (at least, to each other).