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The northern saw-whet owl makes a repeated tooting whistle sound. Some say they sound like a saw being sharpened on a whetstone. [21] These calls are usually produced by males searching for mates, so they can be heard more often beginning in January and continuing through the end of the breeding season in early July. [22]
Typical owls are small to large solitary nocturnal birds of prey. They have large forward-facing eyes and ears, a hawk-like beak, and a conspicuous circle of feathers around each eye called a facial disk. Eight species have been recorded in Indiana. Eastern screech-owl, Megascops asio; Great horned owl, Bubo virginianus; Snowy owl, Bubo scandiacus
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When the sound source is directly in front of the owl, there is no ITD, i.e. the ITD is zero. In sound localization, ITDs are used as cues for location in the azimuth. ITD changes systematically with azimuth. Sounds to the right arrive first at the right ear; sounds to the left arrive first at the left ear.
The barred owl is a powerful vocalist, with an array of calls that are considered "spectacular, loud and emphatic". [42] Calls probably carry well over 0.8 km (0.50 mi). [43] Its usual call is a series of eight accented hoots ok-ok-ok-ok ok-ok-buhooh, or the "typical two-phrase hoot" with a downward pitch at the end.
Calls are sometimes distinctive enough for individual identification even by human researchers in ecological studies. [31] Call of black-capped chickadee (note the call and response with a second more distant chickadee) Over 400 bird species engage in duet calls. [32] In some cases, the duets are so perfectly timed as to appear almost as one call.
The krooh call of the male snowy owl may perform multiple functions such as competitive exclusion of other males and advertising to females. [8] [78] The calls of this species may carry exceptionally far in the thin air of Arctic, certainly over more than 3 km (1.9 mi), and maybe even to as much 10 to 11 km (6.2 to 6.8 mi) away.
This is an accepted version of this page This is the latest accepted revision, reviewed on 14 January 2025. This is a list of onomatopoeias, i.e. words that imitate, resemble, or suggest the source of the sound that they describe. For more information, see the linked articles. Human vocal sounds Achoo, Atishoo, the sound of a sneeze Ahem, a sound made to clear the throat or to draw attention ...