can Sparrow breath with lungs?
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Birds take oxygen into their body tissues when they breathe in and when they breathe out. ... When a bird exhales, the air sacs deflate and the oxygen-rich air in the rearmost air sacs is squeezed into the lungs while waste air is expelled from the body by the front-most air sacs.
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When a bird exhales, the air sacs deflate and the oxygen-rich air in the rearmost air sacs is squeezed into the lungs while waste air is expelled from the body by the front-most air sacs
The bird's respiratory system consists of paired lungs, which contain static structures with surfaces for gas exchange, and connected air sacs, which expand and contract causing air to move through the static lungs.
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