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Instead of moving their eyes, owls swivel their heads to view their surroundings. Owls' heads are capable of swiveling through an angle of roughly 270°, easily enabling them to see behind them without relocating the torso. [29] This ability keeps bodily movement at a minimum, thus reduces the amount of sound the owl makes as it waits for its prey.
The eyes have a field overlap of 50–70%, giving better binocular vision than for diurnal birds of prey (overlap 30–50%). [77] The tawny owl's retina has about 56,000 light-sensitive rods per square millimetre (36 million per square inch); although earlier claims that it could see in the infrared part of the spectrum have been dismissed. [78]
Adults have large rounded heads with grey faces and yellow eyes with darker circles around them. The underparts are light with dark streaks; the upper parts are grey with pale bars. This owl does not have ear tufts and has the largest facial disc of any raptor. There is a white collar or "bow-tie" just below the beak.
The owls with haunting dark eyes and an "X" pattern of white feathers on their face make their home in California’s central and southern mature forests. In 2023, ...
If the sound reaches the left ear first, the mouse must be to the left of the owl. The owl's brain will then direct the head to directly face the mouse. [7] In addition to hearing, owls have massive eyes relative to their body size. Contrary to popular belief, however, owls cannot see well in extreme dark and are able to see well in the day. [1]
The ecological purpose of their colorful eyelids is not known; however, Brown (1965) opined that they replace the colorful yellow to orange eyes of eagle-owls in breeding and territorial displays, since they were very conspicuous in displaying males. [4] [5] [30] Their eyes are dark-brown in color and like all eagle-owls, they have ear-tufts ...
The pearl-spotted owlet is one of the smallest owls in Africa with a length of 17 to 21 cm. The females are slightly larger and heavier (100g) than the males (65g). Both males and females have similar plumage colouration. The facial disc is off-white and the eyes are yellow. At the back of the head there are two striking false black 'eyes' with ...
The eyes are dark brown, being relatively small and closely set to each other, which is opined to give them a less “fierce” countenance than that of a great grey owl (Strix nebulosa). [5] [8] The eyes are reminiscent of an almond in both shape and colour. [4] The bill is yellowish in colour, with a dirty yellow cere.