Plate 111 of the Birds of America by John James Audubon, depicting the pileated woodpecker. Adults are 40 to 49 cm (16 to 19 in) long, span 66 to 75 cm (26 to 30 in) across the wings and weigh 250 to 400 g (8.8 to 14.1 oz), with an average weight of 300 g (11 oz).
How Wolves Help. Wolves play a very important role in the ecosystems in which they live. Since 1995, when wolves were reintroduced to the American West, research has shown that in many places they have helped revitalize and restore ecosystems. They improve habitat and increase populations of countless species from birds of prey to pronghorn, and even trout.
Prey is located by chance or by scent. What wolves eat depends on where they live and what kinds of prey are available. Wolves hunt in packs for large prey such as moose, elk, bison, musk oxen, and reindeer. Wolves help to keep prey populations healthy by hunting the weak, old, and sick animals.A wolf can consume up to 9 kg of meat at one meal.Wolves usually eat almost the entire carcass, including some hair and bones. Smaller animals, such as beavers, rabbits, and other small mammals are usually hunted by lone wolves. Wolves may also eat livestock and garbage when it is available. wolf can consume up to 9 kg of meat at one meal. Wolves usually eat almost the entire carcass, including some hair and bones. Smaller animals, such as beavers, rabbits, and other small mammals are usually hunted by lone wolves. Wolves may also eat livestock and garbage when it is available.