Grass owl may refer to:
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Barn-owls are one of the two families of owls, the other being the true owls or typical owls, Strigidae. They are medium to large owls with large heads and characteristic heart-shaped faces. They have long, strong legs with powerful talons. They also differ from the Strigidae in structural details relating in particular to the sternum and feet.
The barn owl is the most widely distributed species of owl in the world and one of the most widespread of all species of birds. It is also known as the common barn owl, to distinguish it from the other species in its family, Tytonidae, which forms one of the two main lineages of living owls, the other being the typical owls (Strigidae). The barn owl is found almost everywhere in the world except for the polar and desert regions, Asia north of the Himalayas, most of Indonesia, and some Pacific islands.
The red owl is an owl in the barn owl family Tytonidae. It is also known as the Madagascar red owl, Madagascar grass-owl and Soumange's owl. It is a rare resident of Madagascar that was virtually unknown from its discovery in 1876 to its rediscovery by researchers from the World Wide Fund for Nature in 1993. It is currently listed as vulnerable because of habitat loss, but recent studies have determined it may have a wider range than first believed, though further research in distribution and ecology is required. It has possibly been overlooked because of its close resemblance to the closely related barn owl.
Tyto is a genus of birds consisting of true barn owls, grass owls and masked owls that collectively make up all the species within the subfamily Tytoninae of the barn owl family, Tytonidae.
The greater sooty owl is a medium to large owl found in south-eastern Australia, Montane rainforests of New Guinea and have been seen on Flinders Island in the Bass Strait. They have a finely white spotted head with scattered white spots on the wings. The females are lighter colored than the males. The females' length is 37–43 cm and weighs 750-1200 g. The smaller male has a length of 37–43 cm and weighs 500-700 g. The wing length is 30–40 cm. The large dark eyes are set in a round large facial disk. The facial disk is dark gray-silver or sooty black and has a heavy black edge. The upper part of the owl is black to dark gray and the under part is lighter. The tail is short and the legs are feathered. The feet and talons are large. Their call is a piercing shriek which can last up to two seconds.
The Australian masked owl is a barn owl of Southern New Guinea and the non-desert areas of Australia.
The lesser sooty owl is an owl that lives in the wet tropics region of Australia. It is sometimes considered conspecific with the greater sooty owl, Tyto tenebricosa, by some authors. The birds are then together commonly referred to as sooty owl. Like other birds of prey, the female is bigger than the male. The lesser sooty owl is part of the masked group of owls: an important part of the environment because they are efficient predators that keep down rodent populations.
The golden masked owl is a barn owl endemic to the island of New Britain, Papua New Guinea. It is also known as New Britain barn owl, New Britain masked owl, Bismarck owl and Bismarck masked owl.
The Minahassa masked owl, also known as the Minahassa barn owl, Sulawesi owl or Sulawesi golden owl, is a barn owl endemic to the island of Sulawesi, Indonesia. The name is derived from the Minahassa Peninsula, where it was first described as a breeding bird; however, it is also known to live in north-central Sulawesi.
Abrothrix olivacea, also known as the olive grass mouse or olive akodont, is a species of rodent in the genus Abrothrix of family Cricetidae. It is found from northern Chile into southern Chile and Argentina, including the islands of Tierra del Fuego. It is prone to large swings in population size.
The African grass owl is a species of owl in the barn owl family, Tytonidae.
The ashy-faced owl is a species of owl in the family Tytonidae. It is found on Hispaniola. Its natural habitats are subtropical or tropical dry shrubland, subtropical or tropical high-altitude shrubland, and heavily degraded former forest.
The eastern grass owl, also known as Chinese grass owl or Australian grass owl, is a species of owl in the family Tytonidae. They feed predominantly on small rodents.
The Sulawesi masked owl is a species of owl in the family Tytonidae. It is endemic to the Indonesian islands of Sulawesi, Sangihe and Peleng. It is listed by the IUCN as being of least concern.
In ornithology, the facial disc is the concave collection of feathers on the face of some birds—most notably owls—surrounding the eyes. The concavity of the facial disc forms a circular paraboloid that collects sound waves and directs those waves towards the owl's ears. The feathers making up this disc can be adjusted by the bird to alter the focal length of this sound collector, enabling the bird to focus at different distances and allowing it to locate prey by sound alone under snow, grass, and plant cover.
The Andaman masked owl is a barn owl endemic to the southern Andaman Islands, an archipelago between India and Myanmar, in the Bay of Bengal. Regarded by some authors as a subspecies of the common barn owl, it is recognized by others as a species in its own right.
The New Caledonian barn owl, also referred to as Letocart's barn owl, is an extinct species of owl in the barn owl family. It was endemic to the island of New Caledonia in Melanesia in the southwestern Pacific region. It was described from Holocene aged subfossil bones found at the Gilles Cave paleontological site on the west coast of Grande Terre. The holotype is a complete adult left femur, held by the Muséum national d'histoire naturelle in Paris. The owl was described as Tyto? letocarti, indicating uncertainty as to generic placement at the time. The specific epithet honours Yves Letocart of New Caledonia's Water and Forest Service, who was active in bird conservation and paleontological work on the island.
The western barn owl is usually considered a subspecies group and together with the American barn owl group, the eastern barn owl group, and sometimes the Andaman masked owl make up the barn owl. The cosmopolitan barn owl is recognized by most taxonomic authorities. A few separate them into distinct species, as is done here. The western barn owl is native to Eurasia and Africa.
The northern masked owl is a large forest owl in the family Tytonidae. The northern kimberi subspecies was identified as a novel race of the Australian masked owl by the Australian ornithologist Gregory Macalister Mathews in his 1912 reference list of Australian birds. The northern masked owl occurs in forest and woodland habitats in northern Australia, ranging from the northern Kimberley region to the northern mainland area of the Northern Territory and the western Gulf of Carpentaria. While the Australian masked owl is recognized as the largest species in the family Tytonidae, the northern masked owl is one of the smallest of the Australian masked owl subspecies.
The Magaliesberg Biosphere Reserve is located in South Africa between the cities of Pretoria and Johannesburg to the east and Rustenburg to the west. The reserve lies at the interface of two great African biomes — the Central Grassland Plateaux and the sub-Saharan savannah — and the remnants of a third biome, the Afro‐montane forest. The rich biodiversity includes floral species such as Aloe peglerae and Frithia pulchra, and faunal species such as the forest shrew, sable antelope and 443 bird species representing 46.6% of total bird species in the southern African sub-region.