Which two details support the idea that a bird's wing can be used as a weapon of defense? A The bird has a shoulder, elbow, and wrist, as we have."

B One would not think that feathers could have so much power; but when the wing is spread, the barbs of the feathers hook together with tiny hooks. ..."

C A large bird can give a severe blow it is said they hold up one wing to protect themselves while they strike at the wing, and when pigeons fight, enemy with the other. "

D Woodcocks make whistling sounds with their wings as they fly, and mourning doves softly murmuring ones."

E Ruffed grouse produce with theirs a rolling drum-like effect, and others rattle theirs like castanets."