Do birds use lungs to breathe?

Yes birds have lungs and they are used by the animal to breath

Birds do have lungs and they do breathe with them, however birds utilize a series of separate air-sacs that are filled prior to the lung's use of the air.

Whether a bird is inhaling or exhaling, the air flows through the birds lungs

in the same direction, and not "in-and-out" as our lungs function.

This makes the respiratory system in a bird, super- efficient and utilizes

the maximum amount of oxygen.
Yes