Meaning: This sentence describes the movement of birds in the sky, emphasizing their location above the pond and their ability to fly.
Choice of Words: "Birds" are warm-blooded animals that have feathers and lay eggs. "Fly" means to move through the air using wings. "Over" indicates a position or location above something. "Pond" is a small body of water, often found in a garden or park. "Sky" is the region of the atmosphere above the Earth's surface.