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Male Tyto alba alba (left) and female T. a. guttata barn owls in the Netherlands, where these subspecies intergrade. Barn owls consist of two extant subfamilies: the Tytoninae or Tyto owls (including the western barn owl) and the Phodilinae or bay owls.
New Caledonian barn owl Tyto letocarti, extinct, from the island of New Caledonia in Melanesia Index of animals with the same common name This page is an index of articles on animal species (or higher taxonomic groups) with the same common name ( vernacular name).
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]
Adult body mass is also variable, with male owls from the Galapagos weighing 260 g (9.2 oz), while male Pacific barn owls average 555 g (19.6 oz). In general, owls living on small islands are smaller and lighter, perhaps because they have a higher dependence on insect prey and need to be more manoeuvrable. [11]
Female. The Tasmanian masked owl (Tyto novaehollandiae castanops) is a bird in the barn owl family Tytonidae that is endemic to the island state of Tasmania, Australia.It is the largest subspecies of the Australian masked owl, the largest Tyto owl in the world, [3] and is sometimes considered a full species.
In at least one species, female owls do not mate with the same male for a lifetime. Female burrowing owls commonly travel and find other mates, while the male stays in his territory and mates with other females. [38]
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.
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