Most birders use the terms nape and hindneck interchangeably, but there are differences between the two and how these different parts of a bird are classified. In general, the nape is a shorter section of the back of the neck, just below the crown.
They are arboreal creatures, spending most of their time in the treetops foraging for food, and rarely descend to the forest floor. Howler monkeys are the largest of all New World monkeys and have a lifespan of seven to fifteen years. Habitat: Mantled howler monkeys can be found in the canopies of both lowland and montane rainforests. They are commonly heard long before they are seen searching for leaves in the treetops. A troop of howler monkeys usually consists of eight to twelve females, three or four dominant males and several young.
Average life span in the wild: 15 to 20 years. Size: Head and body, 22 to 36 in (55.8 to 91.4 cm); Tail, 23 to 36 in (58.4 to 91.4 cm). Weight: 15 to 22 lbs (7 to 10 kg). Group name: Troop. Size relative to a 6-ft (2-m) man: Howlers are New World monkeys found in tropical Central and South America.They are aptly named for their cacophonous cries. When a number of howlers let loose their lungs in concert, often at dawn or dusk, the din can be heard up to three miles (five kilometers) away. gripping tail is particularly helpful to howler monkeys because they rarely descend to the ground. They prefer to stay aloft, munching on the leaves that make up most of their diet. Howler monkeys have beards and long, thick hair which may be black, brown, or red.