Typical owls are small to large solitary nocturnal birds of prey. A songbird is a bird belonging to the clade Passeri of the perching birds (Passeriformes). The typical owls are small to large solitary nocturnal birds of prey. Killer whales hunt varied prey including fish, cephalopods, mammals, sea birds, and sea turtles. Animals hunted by trained birds and animals is permitted. Mongooses mostly feed on insects, crabs, earthworms, lizards, birds, and rodents. It remains a habitat for many rare birds and mammals. Of the ten native land birds and shorebirds, seven are endemic species or subspecies. The Kalahari is home to many migratory birds and animals. Coronaviruses cause diseases in mammals and birds. Avivores are animals that are specialised at preying on birds. Vertebrate hosts include reptiles, birds, and mammals. Some corvids are predators of other birds. The virus may circulate within a number of animals including birds and rodents. Many of the other birds and animals tried and failed.