act as the functional units of the respiratory system by passing oxygen into the body and carbon dioxide out of the body. Finally, the muscles of respiration, including the diaphragm and intercostal muscles, work together to act as a pump, pushing air into and out of the lungs during breathing.
The Ivory-billed Woodpecker (Campephilus principalis) is an extremely rare member of the woodpecker family, Picidae. It is officially listed as an endangered species, but by the end of the 20th century had widely been considered extinct until it was apparently sighted along the Cache River in Arkansas in 2004 and 2005.
Acorns and other mast make up most of the winter diet. Status: State endangered. Identification: The red-headed woodpecker is the only woodpecker in North America with an entirely red head and neck. The back is solid black and the belly is white.Distinctive white inner wing patches and a white rump are especially noticeable in flight. Immature birds have a buff-brown or dusky head and back.corns and other mast make up most of the winter diet. Status: State endangered. Identification: The red-headed woodpecker is the only woodpecker in North America with an entirely red head and neck. The back is solid black and the belly is white.