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The bird family Tytonidae, which includes the barn owls Tyto and the bay owls Phodilus, is 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 ...
The owl's remains date back to the Miocene-Pliocene boundary 5.5 to 5 million years ago. The fossil bones are about 60% as long again as a modern barn owl, [1] giving a total length of about 50–65 cm for T. robusta. This owl provides an interesting case study of evolution and insular gigantism.
Pellets from a long-eared owl. The alimentary canal of a bird. Long-eared owl pellets and rodent bones obtained from dissected pellets (1 bar = 1 cm). A pellet, in ornithology, is the mass of undigested parts of a bird's food that some bird species occasionally regurgitate.
The whole family Tytonidae, though this also includes the bay owls in the genus Phodilus. Tyto, the largest genus of birds in Tytonidae, and particularly these species in that genus: Three species that are sometimes considered to be a single species known as barn owl or common barn owl:
The American barn owl is a medium-sized, pale-coloured owl with long wings and a short, squarish tail. [3] However, the largest-bodied race of barn owl, T. f. furcata from Cuba and Jamaica, is also an island race, albeit being found on more sizeable islands with larger prey and few larger owls competing for dietary resources. [4]
Puerto Rican barn owl (Tyto cavatica) found in Puerto Rico - may still have existed up to 1912; possibly a subspecies of the ashy-faced owl (Tyto glaucops) Noel's barn owl (Tyto noeli) found in Cuba; Rivero's barn owl (Tyto riveroi) found in Cuba; Cuban barn owl (Tyto sp.) found in Cuba; Hispaniolan barn owl (Tyto ostologa) found in Hispaniola
Barn owl on Lithuanian silver coin of 5 litas (2002) The Western Barn owl is relatively common throughout most of its range and is not considered globally threatened. However, locally severe declines from organochlorine (e.g., DDT) poisoning in the mid-20th century and rodenticides in the late 20th century have affected some populations.
Male masked owls' weights ranges from 420 to 800 g (0.93 to 1.76 lb), while females are typically much larger ranging from 545 to 1,260 g (1.202 to 2.778 lb). [3] [4] Length ranges between 330 to 410 mm (13 to 16 in) for males and 390 to 500 mm (15 to 20 in) for females. Wing span is up to 1,280 mm (50 in) for southern female masked owls.