Information of Crow by SAFDAR 2013/08/17 18:58
crow (genus Corvus), any of various glossy black birds found in most parts of the world, with the exception of southern South America. Crows are generally smaller and not as thick-billed as ravens, which belong to the same genus. A large majority of the 40 or so Corvus species are known as crows, and the name has been applied to other, unrelated birds. Large crows measure about 0.5metre (20 inches) long, with wingspans that can reach 1 metre (39 inches).
Crows feed chiefly on the ground, where they walk about purpose fully. They are omnivores that enjoy meat and may even attack and kill young, weak animals.
This habit makes them unpopular with farmers, as does the birds propensity to raid grain crops. Berries, insects, the eggs of other birds, and carrion are also eaten. Crows will make off with shreds of roadkill and store tidbitsin trees, caching the meat like a leopard does for later consumption. Sometimes they bury seeds or store them in crevices in bark. They occasionally steal food from other animals, sometimes cooperating with other crows to raid food from otters, vultures, and water birds.
Crows live in large, close-knit families, and, like social mammals, they not only hunt and forage together but also defend territories and care for the young together. Mostspecies, however, do not nest in colonies. Each mating pair has its own nest of sticks and twigs, usually high up in a tree. There are laid five or six greenish-to-olive eggs, with darker speckles. Young crows may spend up to six years with their parents before breedingon their own. As winter approaches, northern crows gather into large night-roosting groups. These flocks can includetens of thousands of birds and occasionally hundreds of thousands. Possible reasons for this seasonal gregariousness are warmth, protection against predators such as owls, or information exchange. A crow may live 13 years in the wild and more than 20 years in captivity.
Highly intelligent, crows can be masterful mimics. They have been trained to count aloud up to seven, and some crows have learned more than 100 words and up to 50 complete sentences; others have been knownto mimic their owners voices in order to call dogs and taunt horses. They also exhibit great curiosity, fueling a reputation as inventive pranksters and calculating thieves. They fly off with peoples mail,pull clothespins off lines,and make off with unattended objects suchas car keys.
Some common crows are the American crow of North America and the carrion crow(C. corone) of Europe and most of Asia. A subspecies of the carrion crow with gray on the back of the neck and breast is called the hooded crow(C. corone cornix). Sometimes considered a separate species, it is found between western Europeand eastern Asia and in the northern British Isles. Other crows include the house crow(C. splendens) of the Indian subcontinent (introduced in eastern Africa); the pied crow(C. albus), with white nape and breast, of tropical Africa; and the fish crow(C. ossifragus) of southeastern and central North America. Other members of the genus Corvusnot called crows are the raven, jackdaw, and rook.
crow (genus Corvus), any of various glossy black birds found in most parts of the world, with the exception of southern South America. Crows are generally smaller and not as thick-billed as ravens, which belong to the same genus. A large majority of the 40 or so Corvus species are known as crows, and the name has been applied to other, unrelated birds. Large crows measure about 0.5metre (20 inches) long, with wingspans that can reach 1 metre (39 inches).
Crows feed chiefly on the ground, where they walk about purpose fully. They are omnivores that enjoy meat and may even attack and kill young, weak animals.
This habit makes them unpopular with farmers, as does the birds propensity to raid grain crops. Berries, insects, the eggs of other birds, and carrion are also eaten. Crows will make off with shreds of roadkill and store tidbitsin trees, caching the meat like a leopard does for later consumption. Sometimes they bury seeds or store them in crevices in bark. They occasionally steal food from other animals, sometimes cooperating with other crows to raid food from otters, vultures, and water birds.
Crows live in large, close-knit families, and, like social mammals, they not only hunt and forage together but also defend territories and care for the young together. Mostspecies, however, do not nest in colonies. Each mating pair has its own nest of sticks and twigs, usually high up in a tree. There are laid five or six greenish-to-olive eggs, with darker speckles. Young crows may spend up to six years with their parents before breedingon their own. As winter approaches, northern crows gather into large night-roosting groups. These flocks can includetens of thousands of birds and occasionally hundreds of thousands. Possible reasons for this seasonal gregariousness are warmth, protection against predators such as owls, or information exchange. A crow may live 13 years in the wild and more than 20 years in captivity.
Highly intelligent, crows can be masterful mimics. They have been trained to count aloud up to seven, and some crows have learned more than 100 words and up to 50 complete sentences; others have been knownto mimic their owners voices in order to call dogs and taunt horses. They also exhibit great curiosity, fueling a reputation as inventive pranksters and calculating thieves. They fly off with peoples mail,pull clothespins off lines,and make off with unattended objects suchas car keys.
Some common crows are the American crow of North America and the carrion crow(C. corone) of Europe and most of Asia. A subspecies of the carrion crow with gray on the back of the neck and breast is called the hooded crow(C. corone cornix). Sometimes considered a separate species, it is found between western Europeand eastern Asia and in the northern British Isles. Other crows include the house crow(C. splendens) of the Indian subcontinent (introduced in eastern Africa); the pied crow(C. albus), with white nape and breast, of tropical Africa; and the fish crow(C. ossifragus) of southeastern and central North America. Other members of the genus Corvusnot called crows are the raven, jackdaw, and rook.
HandsomeDon 2013/08/17 19:09
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SAFDAR 2013/08/17 19:09
Often associated with bad omen and also the world of occult, crows are migratory birds and have been met with fear and resentment from humans. However, contrary to what people usually associate them with, crows are highly intelligent creatures that are known for adapting skillfully to their surroundings. They can mimic various sounds and have a highly specialized language for communication. When gathered in huge communal groups, they may become a nuisance for people due to their shrill and loud cawing and may even attack humans if disturbed. Crows are known to be omnivorous and aggressive and often prey on other birds and their eggs if threatened in their own surroundings. Typically, crows are urban birds and are found in abundance in places with lots of human population. The crow is found almost all over the world, withthe exception of some off-shore islands and very cold regions.
Often associated with bad omen and also the world of occult, crows are migratory birds and have been met with fear and resentment from humans. However, contrary to what people usually associate them with, crows are highly intelligent creatures that are known for adapting skillfully to their surroundings. They can mimic various sounds and have a highly specialized language for communication. When gathered in huge communal groups, they may become a nuisance for people due to their shrill and loud cawing and may even attack humans if disturbed. Crows are known to be omnivorous and aggressive and often prey on other birds and their eggs if threatened in their own surroundings. Typically, crows are urban birds and are found in abundance in places with lots of human population. The crow is found almost all over the world, withthe exception of some off-shore islands and very cold regions.
SAFDAR 2013/08/17 19:17
Crow eggs hatch in about eighteen days and stay withtheir parents till they learn to fly
Mating crows live together for years and some of them actually part when one of them dies.
*.Baby crows learn to fly when they are about one month old
Crows are attracted to food scraps and trash from garbage cans
The average number of eggs laid by the female is 47. Both male and female take turns to guard the nestand the male takes the initiative to incubate them. Crows usually have a singlemate for life unless one diesor is captured.
Crow eggs hatch in about eighteen days and stay withtheir parents till they learn to fly
Mating crows live together for years and some of them actually part when one of them dies.
*.Baby crows learn to fly when they are about one month old
Crows are attracted to food scraps and trash from garbage cans
The average number of eggs laid by the female is 47. Both male and female take turns to guard the nestand the male takes the initiative to incubate them. Crows usually have a singlemate for life unless one diesor is captured.
Emo_CutE_GiRl_ 2013/08/17 22:00
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