INHALATION IN AVES

Birds are AVES not MAMMALS therefore we should expect they have the same respiratory process which mammals but they also respire.
The respiratory system of birds differs significantly from that found in mammals, containing unique anatomical features such as air sacs. The lungs of birds also do not have the capacity to inflate as birds lack a diaphragm and a pleural cavity. Gas exchange in birds occurs between air capillaries and blood capillaries, rather than in alveoli.