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Snowy owl

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Snowy owl
Snowyowlgrass.jpg
Scientific Classification
Binomial Name

Bubo scandiacus

Bubo Scandiacus

The Snowy owl is a species of owl known by the scientific name Bubo scandiacus. It is also known as the Tundra Ghost, Great White Owl, Scandinavian Night bird, Ghost Owl, Ermine Owl, Arctic Owl, Ookpik, White Terror of the North, and Highland Tundra Owl. [1] Strikingly different, this owl is a beautiful white with a unique arrangement of brown spots and barring. [2] The snowy owl has distinctive fur on its toes and bright yellow eyes above a stone cold black beak. They have extremely strong senses, such as their heightened hearing to find prey in the dark, and their eyes have more light cells than humans making them extra sensitive. [3]

Anatomy

Bubo scandiacus showing it's beautiful eyes

The snowy owl’s body can vary between 20 to 27 inches (50-68cm) and can weigh 3.5 to 4.5 pounds. The snowy owl’s wings can stretch to a limit of 142 to 166 centimeters. [4]The bird has a rounded head, on which is its black bill and yellow eyes. [5]

An adult eats an average of 3 to 5 lemmings per day and the local numbers depend on the lemming population (i.e. if the lemming population is low, the snowy owl population is low). The snowy owl’s diet consists of a variety of sizes of animals such as small rodents to larger rabbits, and birds as large as lemmings. The snowy owl has a relatively small beak and must swallow their prey whole when eating [6], due to their lack of teeth and about 12 hours later cough up bones feathers and fur in a small pellet. [7]. Snowy white owls are moderately long-lived owls and can live for over 10 years when Undomesticated. When captive, they can live for approximately 28 years. [8]

The snowy owl is a larger sized owl with a rounded head. This species of owl has yellow fixed eyes and very good vision. Unlike other species of owls the snowy white owl is diurnal, or active most during the daytime. [9] The snowy owl has fixed eyes (meaning they cannot pivot in the sockets) and to make up for this lack of ability the owl was created with a head that can rotate 270°. [10] the adult male is almost entirely white and most distinctive as the typical snowy owl. The females and their young are mostly white with more markings such as barring and small, scattered spots.

Reproduction

Snowy Owl chick

The snowy owl attracts the opposite sex as most other birds (or the class Aves) using a call. The male white owl has a loud snapping noise while the female call is much higher sounding and the females rarely make the typical ‘hooting’ noise. Both sexes refrain from using their mating call during the non-breeding season. Youth snowy white owls begin to make noises at approximately 2 weeks of age. The snowy white owl can also hiss and snap its bill. [11] the snowy owl can be found in the western Aleutians during the breeding season, which is usually may. These type of owls typically nest ton the ground where they lay their eggs. The number of eggs drastically varies from zero to nine plus eggs depending on the females diet prior to the pregnancy. Offspring are able to be incubated anywhere 31 to 33 days and once hatched the parents will keep their young for about four months. [12] the B. scandiacus can fly as early as fifty days old [13] and master flight at about eight weeks. They can also reproduce their own at two years old [14] An adult eats an average of 3 to 5 lemmings per day and the local numbers depend on the lemming population (i.e. if the lemming population is low, the snowy owl population is low). The snowy owl’s diet consists of a variety of sizes of animals such as small rodents to larger rabbits, and birds as large as lemmings. The snowy owl has a relatively small beak and must swallow their prey whole when eating. Snowy white owls are moderately long-lived owls and can live for over 10 years when Undomesticated. When captive, they can reach an extremely long time of approximately 28 years. [15]

Ecology

The snowy owl migrates south and the pattern fluctuates irregularily.[16] The snowy white owl can drift from North America (central California, Florida and Texas), Northern Canada, and is also frequently found in the northern United States during the winter. [17]They are extremely protective of their nest and in order to save their young will attack intruders or/and humans. The snowy owl is usually shy unless nesting.[18] Females sit on the eggs while the male goes about gathering food for the female and the infant. The adolescent starts to leave the nest around 25-26 days after hatching. They can begin to fly around 50 days of age. They continue to be nourished by the parents for 5 more weeks after they leave the nest. [19]

Videos




Gallery

References

  • [20] 10/25/2009.
  • [21] 2000-2009.
  • [22] Deane P. Lewis, OwlPages.com, 2009-10-29
  • [23]
  • [24]
  • [25]Environment Canada,19 January 1999