Differences between Crane and Rook

Crane and Rook are two classes of birds that belong to the Gruidae and Corvidae families respectively.

Cranes are graceful tall birds with long neck, long legs, and long bill. They are ancient birds. Their fossil, assessed to be 2.5 million years old, have been found in Florida. Cranes are wading birds that resemble Herons. They are generally white, gray, or brown in color. Their forehead is a bright red, while their bill is large and pointed. The Crane family consists of 15 species.

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 Crane and Rook found?

Cranes prefer grasslands, wetlands, marshes, canals, ponds, and shallow waters. Nevertheless, they can also be found near agricultural fields. They are not intimidated by humans. Cranes are a common sight across the world, except Antarctica and South America.

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 Crane and Rook eat?

Cranes are omnivores. They mostly eat fish, rodents, and insects. When they are close to wetlands, they eat worms, snails, and tiny invertebrates. In dry places, they eat grains, nuts, leaves, seeds, berries, small reptiles, and insects.

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 Crane and Rook

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

Size of Crane and Rook?

When it comes to size, Cranes are thought to be the tallest flying birds in the world. They generally grow up to four to five feet tall. They also have a wide wingspan of about nine feet. The Whooping Crane is the tallest bird in the USA with a height of five feet. The Sarus Crane is the tallest flying bird in the world at 5.12 feet.. Rooks are 1.4-1.5 feet long. They have a wingspan of three feet.

The average weight of Cranes is 6.6-13.4 pounds. The Red Crowned crane is considered to be the heaviest of all Crane species at 20 pounds. while The average weight of Rooks is 11.99-18.69 ounces.

Where do Crane and Rook nest?

Cranes generally build their nests in shallow freshwater and marshy areas. The nests are made of weeds, grass, and plant material. However, Crowned Cranes build their nest in low trees, while Sandhill Cranes construct them in the Arctic. Cranes lay two eggs at a time, with the incubation period being 28-30 days. Both male and female partners engage in rearing the young ones, which live with them until the following breeding season.

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 Crane and Rook live?

The average lifespan of Cranes is 20-30 years. Mortality is high among younger Cranes of less than three years due to predation. A Siberian Crane had lived up to the age of 62 at the National Zoological Park, Smithsonian Institute, USA. A Siberian Crane lived longer – it was 83 years old when it died.

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 Crane or Rook migratory birds?

Some species of Cranes migrate long distances, while some of them are non-migratory. Some Siberian Cranes fly from western Siberia to south India, while Common Cranes migrate across Europe and Asia. Some species also migrate to northeast India. Sandhill Cranes are considered to migrate the longest distance, travelling between Siberia and Mexico every year. Other species like Demoiselle Cranes, Hooded and Red Crowned Cranes also migrate long distances to countries like China, Russia, and Japan each year.

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 Crane and Rook fly in flocks?

A group of Cranes is called a sedge. Cranes, especially the Sandhill species, form large flocks. They are gregarious birds that congregate together during migration and winters. However, they prefer solitude and live in pairs during the breeding season.

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 Crane or Rook protected?

In the USA, Sandhill and Whooping Cranes are protected under the Migratory Bird Treaty Act. Cranes are protected in the UK, where they had become extinct about 400 years ago. The Common Crane or Grus Grus is a protected species in the European Union. The Great Sarus Crane is protected in India along with efforts of conservation of other migratory species.

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 Crane or Rook endangered?

Cranes were widespread in the world. However, their population is gradually declining, especially of some species. This can be attributed to loss of wetlands and marshes, rise in deforestation and urbanization, hunting of birds for meat and feathers, inadequate regulations for conservation, collision of birds with electric power lines, and fatigue and death of birds during migration. The Siberian Crane is the most endangered species. Whooping Crane, Blue Crane, and Hooded Crane are other species that are facing the danger of extinction.

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 Crane and Rook fly?

Cranes are considered to be the tallest flying birds in the world. They fly with their head and neck stretched out and legs trailing behind. During migration, they fly 200 miles in a day using the warm air to achieve height and drift. These birds can fly at an altitude of 16,000-26,000 feet above sea level. Demoiselle Cranes migrate over the Himalayas at an altitude of 26,000 feet to enter India. The Siberian Crane flies almost 10,000 miles in a year for migration.

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 Crane and Rook swim?

Cranes cannot swim as they do not have webbed feet. The chicks however swim and follow their parents in the marshes. Adult Cranes avoid deep waters and generally live near shallow waters where they can wade through with their long legs.

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

Mating patterns among Crane and Rook

Cranes generally start breeding once they are three to five years old. They breed once a year during the breeding season. They perform elaborate dances involving sophisticated footwork during courtship. They also perform unison calling, which according to scientists strengthens the bond between the male and female besides defend territory. Both partners engage in picking up straws and plant material to build the nest. They even use the same nest for multiple years.

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 Crane and Rook ?

The breeding season depends on geography and species. In the case of migratory species, it is usually during the summer. In the case of other species, the breeding season corresponds with the monsoon.

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

Do Crane and Rook mate for life?

Most cranes mate for life. They are monogamous for life or until one of them dies. The partners may break up and find new ones if breeding attempts fail.

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 Crane and Rook sleep?

Cranes sleep at night, usually with one or both legs in water and head bent down. They sometimes also sleep while standing on the ground. Cranes however sleep closer to their nests during the breeding season in order to protect the eggs and little ones from predators.

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 Crane and Rook be eaten?

Cranes are edible and are widely consumed by humans since ancient times. It is recorded in history that the Christmas feast hosted by King Henry II in 1251 involved the meat of more than one hundred cranes. Some countries still allow hunting and consumption of Cranes.

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 Crane or Rook?

Hunting Cranes is allowed in several states of the USA. It is also allowed in Canada with the acquisition of a permit. However, hunting the birds is not allowed in some countries like India. Unregulated hunting and easy to obtain hunting permits allow people to kill Cranes for their meat and feather.

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 Crane or Rook?

Feeding wild animals and birds in public places is not permitted in places like USA, Singapore, and Dubai. In captivity, Cranes are fed worms, small fish, lizards, and insects besides grains, berries, and fruits.

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