As Small As Your Thumb Riddle

Riddle: As small as your thumb, I am light in the air. You may hear me before you see me, but trust that I'm here. What am I?

Answer: A hummingbird

Source: https://www.riddles.com/3216

As small as your thumb, I am light in the air. You may hear me before you see me, but trust that I'm here. What am I? — As small as your thumb riddle by Sphinx Riddles v1.

Riddle: As small as your thumb, I am light in the air. You may hear me before you see me, but trust that I'm here. What am I? Answer: A hummingbird — by Sphinx Riddles v2.