Differences between Crow and Rook

Crow and Rook are two classes of birds that belong to the Corvidae family .

Crow is a large bird with incredible intelligence. It is characterized by shiny black plumage and dark legs. Its beak, eyes, wings, and tail are all black. The bird has four toes on each foot. Crows are particularly known for their cleverness. They have great discerning abilities and have excellent self-control. They can make their own tools, solve problems, remember faces, mimic sounds, and prank other animals. They are also trainable. There are around 40 species of crows across the world.

Rook is a Eurasian bird that resembles the Crow. It has black plumage with purple sheen in addition to bushy feathers on its thighs. The bill is sharp and slightly curved. The legs are black with three forward and one backward toe. The bird differs from Crow and other members of the family by the white bare skin at the base of its bill. It is however as intelligent as other species of the Corvidae family. It can solve puzzles, plan in advance, build and apply tools, mimic human vocabulary, and display sophisticated behavior. The Rook family consists of two sub-species, namely, the Western Rook and the Eastern Rook.

Where are Crow and Rook found?

The natural habitat of Crows include grasslands, forests, mountains, agricultural regions, and deserts. They like locations where there are trees. However, these birds are highly adaptable and exist everywhere. They are common sight even in big cities. Crows can be found in all parts of the world. The exceptions are South America and Antarctica.

Rooks prefer open grasslands, agricultural fields, and pastures with ample tall trees for breeding. The birds can be found in the fringes of towns and cities. Rooks exist in the UK, Ireland, Iran, northern and central Europe, parts of Asia, and New Zealand.

What do Crow and Rook eat?

Crows are omnivores. They are both predators and scavengers. They can eat anything. They eat rodents, reptiles, small mammals, worms, insects, and eggs besides grains, fruits, nuts, and human food.

Rooks are omnivores. They dig into agricultural fields for insects, larvae, and worms. They also eat beetles, larger insects, mice, small birds, eggs, seeds, grains, carrion, and food waste thrown away by humans.

Here are a few pointers about the eating patterns between Crow and Rook

• Both Crow and Rook eat Fish.
• Both Crow and Rook eat Frogs.
• Both Crow and Rook eat Lizards.
• Both Crow and Rook eat Snakes.
• Both Crow and Rook eat Turtles.
• Both Crow and Rook eat Squirrels.
• Gophers are commonly eaten by Crow, but not by all Rook.
• Baby Ducks are consumed by both Crowand Rook.
• Mice are eaten by both Crow and Rook.

Size of Crow and Rook?

When it comes to size, The size of crows varies for different species. Jackdaw Crow is the smallest with a length of 13-15 inches and wingspan of 27 inches. Thick-billed Raven is the largest among the species. It is 28 inches long with a wingspan of 45 inches.. Rooks are 1.4-1.5 feet long. They have a wingspan of three feet.

Thick-billed Raven is the largest among crow species. It weighs 2.5-3.3 pounds. On the other hand, the weight of Jackdaw Crow, the smallest Crow, is eight ounces. while The average weight of Rooks is 11.99-18.69 ounces.

Where do Crow and Rook nest?

Crows build their nests in colonies. The male and female partners start building their nest about a month before the breeding season. Their offspring from previous breeding seasons assist them in nest building. The nests are constructed intellectually, with stronger material laid at the bottom for reinforcement. Crows use all kinds of material available around them to construct the nests. They would include twigs, sticks, hay, plant material, aluminium and copper wire, plastic threads, and wood pieces. The nests are usually placed in tall trees and hidden between trunks for improved safety. However, in cities, crows make their nests in inaccessible parts of tall buildings and billboards. The female incubates the eggs for about 18 days, during which time her partner and other offspring feed her. The newly hatched chicks fly when they are about four weeks old but continue to be fed by their parents and siblings for a longer time. The younger ones live with their parents until they start breeding on their own and sometimes even until they are five years old.

Rooks build large nests in colonies that are known as rookeries. They are constructed with twigs and lined with mud, moss, leaves, grass, hair, and wool. The nests stand freely on tall trees. Both male and female partners involve themselves in the construction of the nests. In some instances, they use old nests from previous years. The eggs are greenish white and sometimes have dark spots on them. They are about four centimeters long. The mother Rook incubates the eggs for 16-18 days. During this time, she does not leave the nest and gets fed by her partner. After the eggs hatch, both partners take turns to feed the young ones. The chicks fledge when they are four weeks old but continue to secure food from the parents for more time.

How long do Crow and Rook live?

The average lifespan of Crows is 11-15 years in the wild and over 20-30 years in captivity. Again, this is dependent on the species and the location they live in. Crows in North America are known to live over 30 years.

The average lifespan of Rooks is five to 10 years. However, through bird banding it has been observed that some Rooks live up to 20 years.

Are Crow or Rook migratory birds?

Crows are partially migratory. Those in southern hemisphere are mostly residents. While some birds migrate short distances during winters, some others stay put even in frigid temperatures. Some of them may migrate to breed and some may travel to escape increased urbanization.

The migration of Rooks depends on their location. The ones living in the southern hemisphere are mostly residents. The birds in the north relocate to the south during winters. They migrate in large flocks along with other species from their family, especially the Jackdaws. They return to their rookeries at the onset of spring. Rooks from northern parts of Europe and Asia migrate to southern Asia, western Europe, and the Middle East for wintering.

Do Crow and Rook fly in flocks?

A flock of Crows is called a murder. Crows are sociable birds. They live in groups of varying sizes and always roost in flocks. The birds also have their own families consisting of two to 15 members. Different families communicate and cooperate with each other.

A flock of Rooks is known as parliament, building, or clamor. Rooks are the most sociable in the Corvidae family. They are always spotted in large groups. They forage in flocks and use various vocalization to communicate. The birds are also known to play amongst themselves. In addition, Rooks sleep in big groups and nest together in large colonies.

Are Crow or Rook protected?

Crows are protected in many countries under various schemes and laws for wildlife conservation and protection of migratory birds. Harming Crows or their nests is a punishable offence in these places. However, in countries like Canada there is no law to protect Crows.

Rooks are protected under the Wildlife and Countryside Act in the UK. However, they can be killed with a permit to protect crops and livestock, and for the safety of aircrafts. Similar laws exist in other parts of Europe and Asia.

Are Crow or Rook endangered?

Crows are not endangered birds although their numbers are reducing owing to habitat loss, persecution by farmers, and widespread urbanization. The Hawaiian Crow is extinct in the wild. Restoration activities to increase their population is in progress. Similarly, numbers of Mariana Crow are dropping since 1960s with only a few of them remaining now. They are listed as critically endangered. Efforts to conserve them are underway.

The International Union for Conservation of Nature has classified Rooks as species of least concern. The birds are not endangered. They exist in millions in their territorial countries.

Can Crow and Rook fly?

Crows usually fly along the same lines every day. They are joined by their flocks as they fly for hunting or towards their roosting sites. They can fly at a speed of 30-60 miles an hour. During migration, some species travel up to 1,740 miles.

Rooks typically fly in large flocks. They keep their wings stiff during direct flights. They sometimes soar high in the company of Jackdaws. They fly at a speed of 32-45 miles an hour during migration.

Can Crow and Rook swim?

Crows are not waterbirds. They do not have webbed feet and their body structure does not allow them to swim. They may be able to float on shallow waters by flapping their wings.

Rooks do not have webbed feet like waterbirds. Their body is not adaptable for swimming.

Mating patterns among Crow and Rook

Crows reach sexual maturity when they are two to four years old. The mating displays generally take place on the ground. The male bird ruffles his feathers and makes bowing movements while facing the female. He also makes soft coos to attract her attention. Most partners share their mating territories with their children from previous breeding seasons. The female usually lays two to six eggs in a clutch. The eggs hatch after about 18 days.

Rooks generally start mating when they are two years old. The male Rook sets the ground for courtship by bowing to the female, swinging his tail, and crouching his wings. He will also fetch food for her. The female will bow in return, ruffle her wings, and spread out her tail in acceptance. The partners caress each other’s bill and sing while mating. They are likely to be assaulted by other male birds. The female lays three to four eggs every breeding season. She takes the responsibility of incubating the eggs while the male fetches food for her. Once the eggs hatch, the partners feed the young ones during nesting and even for few weeks after fledging.

When is the mating season for Crow and Rook ?

The mating season for Crows is usually March-July. It varies slightly in different continents.

The mating season for Rooks is March-June. The migratory birds return to their territories when spring sets in.

Do Crow and Rook mate for life?

Crows are monogamous. They mate with the same partner each year. Only in the case of death or indisposition of one partner does the other seek a different mate.

Rooks are monogamous and generally mate for life. Nevertheless, there may be instances of bigamy. A nest could be used by multiple females.

How do Crow and Rook sleep?

Crows usually roost in colonies. They sleep on top of tree while standing up. The birds generally sleep when the sun sets and wake up little before sunrise.

Rooks spend the nights in enormous flocks. As the sun sets, a noisy group of birds return to roosting sites. They sleep on branches in woodlands or even settle down in their rookeries. At daybreak, the birds disperse in different directions in search of food.

Can Crow and Rook be eaten?

Crows are eaten in some cultures. Native Americans and Lithuanians eat them in frenzy. Eating Crow meat is permitted in many countries across the world.

Rooks are said to be consumed largely during the second world war. People still consume them in a gravy. The Rook pie recipe is much acclaimed. Although consumption of scavenging birds is not desired, people are not averse to Rook meat. The meat of young Rooks is said to be more delectable than that of adult Rooks.

Can you hunt Crow or Rook?

Crows are hunted for different reasons, such as for sport and meat. They are also killed by farmers for destroying their crops. The birds are not protected everywhere. Countries like the USA allow killing of Crows with a permit or outside of the nesting season.

Shooting young Rooks was a sport in the UK in earlier years. This served the purpose of sport, pest control, and hunting for meat. Rooks are known as agricultural pests. Killing them with with a license is permitted in most parts of the world as they destroy livestock and crops. They also rummage waste bins and cause health hazards to humans.

Can you feed Crow or Rook?

Feeding Crows in public is discouraged in places like Singapore, Canada, and Dubai. However, feeding Crows is a ritualistic practise in some cultures of south Asia. In captivity, Crows are given worms, mice, eggs, and meat.

Rooks are not picky eaters. They can be given worms, insects, meat, berries, and fruits.