Respiratory System of Pigeons (With Diagram) | Chordata | Zoology
The flight activity requires a continuous and abundant supply of oxygen, therefore, the respiratory system of birds is highly developed and well differentiated. Respiration is pulmonary and respiratory organs are simple. Muscular diaphragm in birds is lacking. The respiratory system includes the respiratory tract, the respiratory organs or lungs and the air sacs. Respiratory Tract: The respiratory tract includes nares, [...]