when it flies
Birds lungs are called lungs but birds also possess air sacs for help in respiration .
Birds respiratory system maintain a high metabolic rate and supplies the extra oxygen required for high-attiude flight , While the mammals respiratory system brings air(oxygen) into the lungs.
Yes - Birds have Lungs - Due to their high metabolic rate required for flight, birds have a high oxygen demand. Development of an efficient respiratory system enabled the evolution of flight in birds. Birds ventilate their lungs by means of air sacs, structures unique to birds (and hence, perhaps dinosaurs, too). These sacs do not play a direct role in gas exchange, but to store air and act like bellows, allowing the lungs to maintain a fixed volume with fresh air constantly flowing through them.[1]
Yes, they do have lungs as they need to breath air.
Birds breathe through their mouth/nose just like you and I.
air that is not fresh contains chemicals which are harmful to your lungs and other organs.
birds do
Yes, they do. Ostriches are flightless birds (Aves) and breathe air with their lungs.
it keeps your lungs healthy and other air can be foul and full of chemicals that will harm your lungs
Yes they are and they are found in the lungs of birds.
The diaphragm squeezes the air out of your lungs
Mammals' lungs contain alveoli, which are basically "dead ends", so contain a mixture of fresh and stale air. However, in bird as their airways are open at both ends (one-way) air flows straight through.