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.
In Texas, its range overlaps with the similar Golden-fronted Woodpecker, and hybrids have been reported (Pyle 1997). The Red-bellied Woodpecker has a black and white zebra-backed pattern on its back, a red nape and crown (male). It is from 9 to 10.5 inches long with a wingspan of 123 to 139 mm.It weighs about 72.5 grams (around 3 ounces). These woodpeckers prefer to feed in the upper parts of live and dead trees.n Texas, its range overlaps with the similar Golden-fronted Woodpecker, and hybrids have been reported (Pyle 1997). The Red-bellied Woodpecker has a black and white zebra-backed pattern on its back, a red nape and crown (male). It is from 9 to 10.5 inches long with a wingspan of 123 to 139 mm.