Assertion: hummingbird's wing beat | /r/HasProperty | rapid
Facets:
value: extremely
type: DEGREE
Source sentences:
text: An adult ruby-throated hummingbird may eat twice its body weight in food each day, which it burns up with the high metabolism necessary to sustain its rapid wing beat and energetic movements.
text: While hovering, hummingbirds do not benefit from the heat loss by air convection during forward flight, except for air movement generated by their rapid wing-beat, possibly aiding convective heat loss from the extended feet.
text: Probably the best-known characteristics of the hummingbird are its extremely rapid wing-beat (50-80 beats per second) and its amazing ability to manoeuvre.