Order Strigiformes 199 species in 25 genera Size: Between 13 cm (Elf Owl, Micrathene whitneyi) and 75 cm (Eurasian Eagle-owl, Bubo bubo). Distribution: All continents, salving Antarctica. The majority of the species are sedentary, being only a 10% of them truly migratory. Habitat: Mainly forests and woodlands. Also open areas, pastures, savannas and tundra. Feeding: Carnivorous. They mainly predate on small mammals. Also birds, reptiles, amphibians, fish, molluscs and arthropodes. Breeding: Cavities in trees, natural or built by other species. Hollows and cracks in rocks. Also vegetal platforms constructed by other birds. Even on the ground. Threat status: 27 threatened species (6 Critically Endangered, 8 Endangered and 13 Vulnerable). 4 Extinct. [+info]