Llamas as guards
Many livestock owners have witnessed favorable experiences as a result of llamas in the pasture with other livestock. Llamas seem to have an instinctive guarding responsibility when placed within a herd of sheep, goats, or other livestock - especially a species smaller than themselves.
Although no method is 100% effective against all predators, the combination of proper fencing, guard dogs, and/or guard llamas has greatly reduced losses. Llamas have proven very effective in areas with coyote problems, but obviously a more difficult situation would arise in areas with bears, cougars, or wild packs of dogs. Coyotes do not travel in large packs and many livestock attacks blamed on coyotes are actually the result of dogs. Dogs will often work in pairs or packs and attack from the rear.
They are very social animals and live with other llamas as a herd. The wool produced by a llama is very soft and lanolin-free. Llamas are intelligent and can learn simple tasks after a few repetitions. When using a pack, they can carry about 25 to 30% of their body weight for 5 to 8 miles.