Differences between Crane and Ibis

Crane and Ibis are two classes of birds that belong to the Gruidae and Threskiornithidae 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.

Ibis is a wading bird that has been in existence since ages – its fossils date back to over 60 million years. The bird is considered sacred in Egyptian culture. It is a quiet bird with spherical-shaped white body, long red legs, and a red, long, curved bill. Ibis consists of around 26 species of wading birds such as spoonbills.

Where are Crane and Ibis 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.

Ibises are inhabited in all warm locations of the world. They do not exist in South Pacific islands and Antarctica alone. They are generally found near wetlands, like marshes, lagoons, ponds, and lakes at sea level. However, some of them also live in grasslands and forests of mountain regions.

What do Crane and Ibis 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.

Ibis is a carnivore. Its natural diet comprises of insects, grasshoppers, spiders, earthworms, crustaceans, beetles, worms, frogs, and small fish. However, the bird can get accustomed to eating anything. It can also consume plant matter, grains, and fruits.

Here are a few pointers about the eating patterns between Crane and Ibis

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

Size of Crane and Ibis?

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.. The average height of an Ibis is 1.8-2.5 feet. Its wingspan measures about 3.18 feet. The critically endangered Giant Ibis stands around 3.2-3.5 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 male Ibis weighs heavier than the female ones. The average weight of the male is 3.7-5.5 pounds, while that of the female is 3.1-4.2 pounds.

Where do Crane and Ibis 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.

Ibises generally breed in big colonies, except for some species such as the Black Ibis. The nests are usually built on trees using sticks and leaves. However, in the absence of trees Ibises create their nests in bushes or on grasses on the ground. About two to five eggs are laid by an individual Ibis in a nesting season. The incubation lasts for around 21-23 days. The young ones, which are guarded and fed by both the male and female partners, fledge in 28-35 days.

How long do Crane and Ibis 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.

Ibises have an average lifespan of 16-27 years. The oldest living White Ibis was 16 years and four months old. It lived in Florida during 1956-1972.

Are Crane or Ibis 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.

Ibis is both a resident and migratory bird. It is migratory in countries like Mangolia, Korea, Japan, and Laos. It has vast breeding colonies in India, Myanmar, Sri Lanka, Cambodia, Thailand, and Indonesia. The bird has migrated to Australia due to drought and loss of habitat in other regions. Ibis is found in the USA, where it migrates from the north during winter.

Do Crane and Ibis 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 Ibises is called congregation, wedge, or stand. Ibis is a convivial bird that travels, sleeps, hunts, and breeds in huge groups that most often also include other species of birds. Ibises especially form large colonies as a breeding season approaches. They also fly in groups through the typical V-formation.

Are Crane or Ibis 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.

Ibis is a protected bird across the world. Hunting, shooting, or attempting to kill the bird is an offence. The USA, Australia, Cambodia, Vietnam, Laos, India, and France are some countries that are actively involved in the protection of some of the rarest and endangered species of Ibis.

Are Crane or Ibis 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 numbers of several Ibis species is on a downfall owing to loss of habitat, hunting, poaching, use of insecticides in agricultural fields, deforestation, and depletion of wet lands. Giant Ibis, Northern Bald Ibis, and Crested Ibis are extinct in several countries and listed as critically endangered in regions where they exist in a tiny population.

Can Crane and Ibis 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.

Ibis is known as a wading bird. Two extinct species were not able to fly. However, the existing ones can all fly. Ibises stretch out their neck and legs in flight, while also performing flapping and sailing every now and then. They usually fly in groups by forming a V-shape to reduce wind resistance. The birds can keep up a speed of about 23 miles per hour. It has been observed that some species fly over 1,800 miles during migration. The Ibis chicks will generally be able to fly 28-56 days after birth.

Can Crane and Ibis 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.

Ibises rarely swim. They wade through water or occasionally glide by flapping their wings. The birds have been noticed swimming, but they are known to avoid deep waters.

Mating patterns among Crane and Ibis

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.

At the onset of breeding season, male Ibises congregate in huge flocks at the colony to attract the females. They engage in several displays, bathing, and even fights. Once the male finds his mate, the partners participate in nest building and caring for the young ones. It is mostly the female that establishes the nesting site and constructs the nest with occasional assistance from the male.

When is the mating season for Crane and Ibis ?

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 Ibises is usually after the rains. Sometimes it is the end of winters. It could even be spring or summer in some regions.

Do Crane and Ibis 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.

Ibises are generally monogamous in each breeding season. Some of them even remain with the same partner for many years. At the same time, some males also mate with more than one female in the same breeding season.

How do Crane and Ibis 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.

Ibises are active during the day. They sleep in colonies in trees during the night – a practice that helps them to protect themselves from predator attacks.

Can Crane and Ibis 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.

Ibises are considered delectable in some parts of Africa even today. Although the bird is protected everywhere, some people cook it covertly. The practice comes from a tradition of eating wild meat cooked in spices.

Can you hunt Crane or Ibis?

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.

Ibises were hunted in ancient times for their meat. However, modern strict laws do not allow hunting or shooting of the bird.

Can you feed Crane or Ibis?

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.

Feeding wild animals and birds in public places is not permitted in places like USA, Singapore, and Dubai. In captivity, Ibises can be fed with insects, little fish, frogs, earthworms, and snails. These birds are not picky eaters – so, you may also give them grains, fruits, and vegetables.