title: Respiration during flight in birds.
mesh_terms: D000400:Air Sacs / Q000502:physiology; D000531:Altitude; D000818:Animals; D001696:Biomechanical Phenomena; D001717:Birds / Q000502:physiology*; D002245:Carbon Dioxide / Q000097:blood; D004372:Ducks / Q000502:physiology; D005426:Flight, Animal; D010100:Oxygen / Q000097:blood; D010101:Oxygen Consumption; D010313:Partial Pressure; D011563:Psittaciformes / Q000502:physiology; D012123:Pulmonary Ventilation; D012119:Respiration; D014870:Water Loss, Insensible
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen