Friday, March 2, 2012

Secretarybird


  
The Life of Animals | Secretarybird | The Secretary Bird is instantly recognizable as having an eagle-like body on crane-like legs the which increases the bird's height to as much as 1.3 m (4 ft) tall.From a distance or in flight it resembles a crane more than a bird of prey. The tail has two elongated central feathers extend beyond That the feet during flight, as well as long flat plumage creating a posterior crest Secretary Bird flight feathers and thighs are black, while most of the coverts are gray with some being white. Sexes look similar to one another as the species exhibits very little sexual dimorphism, although the male has longer head and tail feathers Plumes.


Secretary Birds prefer open grasslands and Savannas rather than dense forests and the which may impede Their Shrubbery cursorial existence. While the birds Roost on the local Acacia trees at night, They spend much of the day on the ground, returning to roosting sites just before dark. Secretary Birds associate in monogamous pairs.


Secretary birds will stay close to Their mate even if Their chick has already left. The Secretary Bird has Traditionally been admired in Africa for its striking appearance and ability to deal with pests and snakes.  The Secretary Bird is the national emblem of Sudan as well as a prominent feature on the Coat of arms of South Africa.


The Secretary Bird on the Presidential Flag and Seal has its head turned to the right, with its distinctive crest Cleary visible and its wings spread out a white banner with its outstretched wings reading Between "Victory is Ours". In South Africa, the Secretary Bird, while not the official bird, is featured as a symbol on the national coat of arms, representing vigilance and military Might, as well as the rise and pride of modern South Africa. The Secretary Bird has been a common motif for African countries on postage stamps, over 65 stamps from about 30 countries are known as of date Including some from stamp-issuing entities Such as Ajman, Manama. The species is well represented in protected areas as well.

American Black Bear

 
The Life of Animals | American Black Bear | Although They all live in North America, American black bears are not closely related to brown bears and polar bears; genetic studies reveal That They split from a common ancestor and 5:05 mya.Both American Asiatic black bears are Considered sister taxa, and are more closely related to each other than to other species of bear.

The Ancestors of American black bears and Asiatic black bears from sun bears diverged 4:58 mya. The American black bear is then split from the Asian black bear mya.The 4:08 earliest fossils of the American black bear, the which were located in Port Kennedy, Pennsylvania, greatly resemble the Asiatic species, though specimens later grew to sizes comparable to grizzlies.From the Holocene to present, American black bears seem to have shrunk in size but this has been disputed Because of problems with these fossil specimens dating.


The American black bear lived during the same period as short-faced bears (Arctodus Simus and A. pristinus) and the Florida spectacled bear (Tremarctos floridanus). These bears evolved from bears Tremarctine That had emigrated from Asia to North America 7-8 ma. The short-faced bears are thought to have been Heavily Carnivorous FL spectacled bear and the more herbivorous, while the American black bears remained arboreal omnivores , like Asian Their Ancestors.  The skulls of American black bears are broad, with narrow muzzles and large jaw hinges.


The Hind legs are longer than Asiatic black bears Those of. Black bears are highly dexterous, being capable of opening screw-top jars and manipulating door latches. Black bear weight tends to Vary According to age, sex, health, and season. Black bears on the East Coast growing niche to be heavier on average than Those on the West Coast. The North American Bear Center, located in Ely, Minnesota, is home to the world's largest captive male and female black bears.

Magpie

  
The Life of Animals | Magpie | Magpies are passerine birds of the crow family, Corvidae. In Europe, "magpie" is Often used by English speakers as a Synonym for the European Magpie, as there are no other Magpies in Europe outside Iberia. According to analysis, the Magpies do not form monophyletic group Traditionally They are believed to be a long tail Certainly has elongated (or shortened) independently in multiple lineages of corvid birds.

Among the traditional Magpies, there Appear to be two distinct lineages: one consists of Holarctic species with black / white coloration and is probably closely related to Eurasian Crows and jays.


The Azure-winged Magpie is a species with a most peculiar distribution and unclear relationships. Either the North American, Korean, and remaining Eurasian forms are accepted as three or four separate species, or there exists only a single species, Pica pica.

Loris

  
The Life of Animals | Loris | Loris is the common name for the Primates of the subfamily strepsirrhine Lorisinae in Lorisidae family. Loris is one genus in this subfamily and includes the slender lorises, while Nycticebus is the genus for the slow lorises. Lorises are nocturnal. Locomotion is a Slow Loris and Cautious climbing form of quadrupedalism.  Female lorises practice infant parking, leaving behind Their Young Infants in nests.
 
 
 

Lark

  
The Life of Animals | Lark | Larks are small to medium-sized birds, 12 to 24 cm (5 to 8 inches) in length and 15 to 75 grams (0.5 to 2.6 ounces) in weight (Kikkawa 2003). They have more elaborate than most birds calls, and Often given extravagant songs in display flight (Kikkawa 2003). Most species build nests on the ground, usually cups of dead grass, but in some species more complicated and partly domed. A few desert species nest very low in bushes, so Perhaps circulating water can cool the nest. Larks' eggs are usually speckled, and clutch sizes range from 2 (ESPECIALLY in species of the driest deserts) to 6 (in species of temperate regions). Larks incubate for 11 to 16 days (Kikkawa 2003). Like many ground birds, most species have long Lark Hind claws, the which are thought to Provide stability while standing.



Many species dig with Their bills to uncover food. Some Larks have heavy bills (reaching an extreme in the Thick-billed Lark) for cracking open seeds, while others have long, down-curved bills, the which are ESPECIALLY Suitable for digging (Kikkawa 2003). Larks are the only passerines That Their lose all feathers in their first moult (in all species Whose first moult is known).


In many respects, Including tertial long feathers, Larks resemble other ground birds Such as pipits. Larks are a well-defined family, partly Because of the shape of Their tarsus (Ridgway 1907). For instance, the American Ornithologists' Union places just after the Crows Larks, shrikes, and vireos. At a finer level of detail, some now place the Larks at the beginning of a superfamily Sylvioidea with the swallows, Various' Old World warbler "and" Babbler "groups, and others (Barker et al., 2002, Alstrom et al. 2006) . Larks, commonly consumed with bones intact, have Historically been Considered wholesome, delicate, and light gaming.


Lark's Tongues were particularly highly valued. In modern times, shrinking habitats Lark made meat rare and hard to come by, though it can still be found in Italy and elsewhere in Restaurants in Southern Europe (Hooper).

Tuesday, February 21, 2012

Snowy Owl

  
The Life of Animals | Snowy Owl | This yellow-eyed, black billed white bird is easily recognizable. Also, these birds can weigh anywhere from 1.6 to 3 kilograms (3.5 to 6.6 lb). It is one of the largest species of owl in North America and is on average the heaviest owl species. The adult male is virtually pure white, but Females and young birds have some dark scalloping; the young are Heavily barred, and dark spotting may even predominate. Its thick plumage, Feathered Heavily taloned feet, and coloration render the Snowy Owl well-adapted for life north of the Arctic Circle.  Snowy Owl calls are varied, but the alarm call is a barking, almost quacking crick-crick; the female also has a softer mewling pyee pyee-or-Prek Prek.


This powerful bird relies primarily on lemmings and other small rodents for food during the breeding season, but at times of low prey density, or Ptarmigan during the nesting period, They may switch to favoring juvenile Ptarmigan.  Some of the larger mammal prey includes Hares, muskrats, marmots, squirrels, rabbits, raccoons, prairie dogs, rats, moles, and entrapped furbearers. Birds preyed upon include Ptarmigan, grouse other ducks, geese, shorebirds, Pheasants, grouse, Coots, grebes, Gulls, songbirds, raptors and other events, Including other owl species. Snowy Owls are also known to eat fish and carrion.



Snowy Owls, like many other birds, swallow small prey Their whole. Biologists frequently examine these pellets to determine the quantity and types of prey the birds have eaten. When large prey are eaten in small pieces, pellets will not be produced. During the nesting season, the Owls regularly defend against arctic foxes Their nests, corvids and swift flying jaegers as well as dogs, gray wolves and avian predators. Both sexes attack approaching predators, dive-bombing them and Engaging in distraction displays to draw the predator away from a nest.  Some species nesting near snowy owl nests, Such as the snow goose, seem to benefit from the protection of snowy owls That drive competing predators out of the area.

Kestrel

 
  
The Life of Animals | Kestrel | The name kestrel, (from French crécerelle, ie crécelle derivative from Ratchet) is given to Several different members of the falcon genus, Falco. Other Falcons are more adapted to active hunting on the wing.  Kestrels require a slight headwind in order to hover, Hence a local name of Windhover for Common Kestrel. Kestrels are bold and have adapted well to human encroachment, nesting in buildings and hunting by major roads.


Kestrels do not build nests Their Own, but use nests built by other species. Most species termed Kestrels Appear to form a distinct clade Among the Falcons, as suggested by comparison of mtDNA cytochrome b sequence data (Groombridge et al., 2002) and morphology.  The most basal "true" Kestrels are three species from Africa and its surroundings the which lack a malar stripe, and in one case have, like other Falcons true but unlike other large Kestrels areas of gray in their wings.


Approximately during the Gelasian (Late Pliocene or Early Pleistocene, around 2.5-2 mya), the main lineage of true Kestrels emerged; this contains the species characterized by a malar stripe.  More enigmatic is a group of 3 predominantly gray species from Africa and Madagascar.  The American Kestrel is the only New World species termed "kestrel".