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A likely event of predation by a barred owl on an adult great grey owl was observed. The authors hypothesized that the victim may have been a smaller male great grey owl (which can be about the same body mass as a large female barred) but this is the only known instance to date of a great gray owl being killed by another species of Strix owl. [208]
The great grey owl (Strix nebulosa) (also great gray owl in American English) is a true owl, and is the world's largest species of owl by length. It is distributed across the Northern Hemisphere , and it is the only species in the genus Strix found in both Eastern and Western Hemispheres.
Owls are birds from the order Strigiformes [1] (/ ˈ s t r ɪ dʒ ə f ɔːr m iː z /), which includes over 200 species of mostly solitary and nocturnal birds of prey typified by an upright stance, a large, broad head, binocular vision, binaural hearing, sharp talons, and feathers adapted for silent flight.
The red-chested owlet is a very small owl, which has a light grey facial disc with whitish markings and short white eyebrows. The head and neck are dark grey and the back and wings are sooty brown. The long tail has three faint bars, the upper breast and flanks have a reddish-brown wash, while the remainder of the underparts are whitish with ...
The collared owlet, being Asia's smallest owl species, measures between 15 and 17 cm. [6] Females are generally larger than the males, weighing approximately 63 g, whereas males weigh in at 52 g. [4] This bird has a grey-brown colour (depending on age-morph) and has a barred back and flanks, while the head is more spotted than barred. [11]
Cross sectioned great grey owl specimen showing the extent of the body plumage, Zoological Museum, Copenhagen Skeleton of a Strigidae owl. While typical owls (hereafter referred to simply as owls) vary greatly in size, with the smallest species, the elf owl, being a hundredth the size of the largest, the Eurasian eagle-owl and Blakiston's fish owl, owls generally share an extremely similar ...
Burrowing owls have bright eyes; their beaks can be dark yellow or gray depending on the subspecies. They lack ear tufts and have a flattened facial disc. The owls have prominent white eyebrows and a white "chin" patch which they expand and display during certain behaviors, such as a bobbing of the head when agitated.
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 ...