United States. 1  UL 72 (Tests for fire resistance of record protection equipment) 2  UL 140 (Relocking devices for safes and vaults) 3  UL 294 (Access control system units) 4  UL 365 (Police station alarm units) 5  UL 437 (Key locks) 6  UL 608 (Burglar-resistant vault doors) 7  UL 609 (Local burglar alarm units and systems) 8  UL 636 (Holdup alarm units)
Owls are birds of prey. Owls feed on a wide variety of prey including mammals, other birds, insects, and reptiles. There are even some species of owls that live in Africa and Asia that feed on birds.Owls cannot chew their prey since, like all birds, they do not have teeth.ost owls are nocturnal. Most owls are active at night. A few species (such as the pygmy owls) are active in the early morning or at dusk while some (such as the burrowing owl and the short-eared owl) are active during the day.
The great horned owl (Bubo virginianus), also known as the tiger owl (originally derived from early naturalists' description as the winged tiger or tiger of the air) or the hoot owl, is a large owl native to the Americas.ther raptors may nest more closely to the great horned owl. One golden eagle nest within only 8 m (26 ft) of an owl nest and there are cases of Harris's hawk and turkey vultures even nesting the very same tree as great horned owls.