Assertion: herring gull | /r/CapableOf | drum their feet
Facets:
value: rhythmically
type: MANNER
value: upon the ground
type: TRANSITIVE-OBJECT
value: for the purpose
type: PURPOSE
Source sentences:
text: European herring gulls may be observed rhythmically drumming their feet upon the ground for prolonged periods of time in a behaviour that superficially resembles Irish stepdancing, for the purpose of creating vibrations in the soil, driving earthworms to the surface, which are then consumed by the gull.