Answer:
A reaction to being spooked that takes its name from waterfowl
Known to accessorize with feathers, trumpets, and harps.
Has no feet, but travels far. Is literate, but not a scholar. Has no mouth, yet clearly speaks.
A precious stone, as clear as diamond. Seek it out while the sun's near the horizon. Though you can walk on water with its power, try to keep it, and it'll vanish in an hour.
What wears a coat in the winter and pants in the summer?
What flies without wings?