Meaning: Feathered creatures produced melodious sounds in the early hours, filling the sky with their enchanting tunes.
Choice of Words: "Birds" are feathered creatures that can fly. "Sang" is the act of producing musical sounds with the voice. "Sweetly" means in a pleasing or melodious manner. "Morning" is the early part of the day. "Sky" is the expanse of air and clouds above the earth.