What is a "flapping sound" Birds?
got youtube.com and type in "Orgami flapping bird" and the select the first video you see
by flapping its wings
By flapping them?
It is flapping wings.
Dangling participles make for very odd, awkward, and often humorous sentences.Wrong: Flapping its wings wildly, the dog was fascinated by the bat stuck in the fire place.A dog has no wings to flap, but in this sentence " Flapping its wings wildly" is meant to refer the dog.You need to get " Flapping its wings wildly," to refer to the bat.Correct: The dog was fascinated by the bat that was stuck in the fire place and flapping its wings wildly.Correct: The dog was fascinated by the bat stuck in the fire place, flapping its wings wildly.
by flapping their wings
by flapping their wings
By flapping them?
It is flapping wings.
Flapping wings and quacks
An albatross can glide over a thousand miles without flapping its wings.