Assertion: american coot's bill | /r/CapableOf | aim the bill
Facets:
value: gradually
type: MANNER
value: with nearly imperceptible movements
type: MANNER
value: until
type: TEMPORAL
value: with a sudden darting motion
type: MANNER
value: downward
type: MANNER
Source sentences:
text: A characteristic strategy is to stand stock-still with bill held horizontal, gradually aiming the bill downward with nearly imperceptible movements—until, with a sudden darting motion, the bittern seizes the prey in its bill, bites or shakes it to death, and swallows it head first.