Corvus Corax is an all black large passerine bird. At maturity the common raven reaches about 25 inches in length and 2.6 pounds in mass. They can live up to 21 years in the wild.

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A mature Common Raven ranges between 56 and 78 cm  in length, with a wingspan of 100 to 150 cm. Recorded weights range from 0.69 to 2 kg. The bill is large and slightly curved, with a culmen length of 5.7 to 8.5 cm. It has a strongly graduated tail, at 20 to 26.3 cm, and mostly black iridescent plumage, and a dark brown iris. The throat feathers are elongated and pointed and the bases of the neck feathers are pale brownish-grey. The legs and feet are good-sized, with a tarsus length of 6 to 7.2 cm

 

Common Ravens can thrive in varied climates; indeed this species has the largest range of any member of the genus and one of the largest of any passerine. They range throughout the Holarctic from Arctic and temperate habitats in North America and Eurasia to the deserts of North Africa, and to islands in the Pacific Ocean. In the British Isles, they are more common in Scotland, Wales, northern England and the west of Ireland. In Tibet, they have been recorded at altitudes up to 16,400 ft, and as high as 20,600 ft. Most Common Ravens prefer wooded areas with large expanses of open land nearby, or coastal regions for their nesting sites and feeding grounds. In some areas of dense human population, such as California in the United States, they take advantage of a plentiful food supply and have seen a surge in their numbers. On coasts, individuals of this species are often evenly distributed and prefer to build their nest sites along sea cliffs. Common ravens are often located in coastal regions because these areas provide easy access to water and a variety of food sources

 

Common Ravens nesting near sources of human garbage included a higher percentage of food waste in their diet, birds nesting near roads consume more road-killed vertebrates, and those nesting far from these sources of food ate more arthropods and plant material.

 

In conclusion Corvus corax is an all black passerine bird.They can grow up to be 56-78 cm in length. Their grown amount of weight is 69-2 kg. They tend to feed on whatever its living near, such as roads and neighborhoods. Most common ravens prefer to live in wooded areas with large expanses of open and land nearby or coastal regions for nesting and feeding grounds. They are mostly found in coastal regions because these areas provide easy access to food and water.
 

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Sources

http://en.wikipedia.org/wiki/Common_Raven