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.
1 These types of woodpeckers are commonly found in Indian Subcontinent, Southeast Asia, Bhutan, Bangladesh, Nepal, Malaysia, Myanmar, Philippine, Cambodia, Singapore, Thailand and Vietnam. Hairy woodpecker is a type of woodpecker that is linked to a family of Picoides villosus. 2  The length of these birds is 250 mm (9.75 mm). 3  The wingspan is 380 mm (15 in). 4  The weight of these species is 40 â 95 grams (1.4 â 3.4 oz). 5  These birds are endemic to Canada, Panama, Bahamas, United States, and Mexico.