Differences between Ibis and Stork

Ibis and Stork are two classes of birds that belong to the Threskiornithidae and Ciconiidae families respectively.

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.

Stork is a large wading bird with long legs and long beak. Its beak and legs are usually red in color, while its eyes are grey. The color of its body could be streaks of white, black, and red depending on the geography. The bird’s head and upper neck are usually not covered with feathers. The Stork is almost mute as it has an undeveloped syrinx. The Stork family consists of about 20 species of birds such as Marabou Stork and Adjutant Stork. The family is related to Herons, Ibises, and Flamingos.

Where are Ibis and Stork found?

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.

Storks choose to live near marshes, grasslands, meadows, rivers, ponds, and lakes. They are not prevalent across the world. They exist chiefly in Asia, Africa, and Europe. One bird from their species can be found in Australia, while three others occur around Argentina and Florida.

What do Ibis and Stork eat?

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.

Storks are carnivores that mainly eat fish. They also feed on reptiles, insects, amphibians, mice, worms, mollusks, crustaceans, and even small alligators. They generally capture their prey in fields and shallow waters.

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

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

Size of Ibis and Stork?

When it comes to size, 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.. Storks are huge birds. They are about two to five feet tall with wide wings that measure over 10 feet. The biggest storks in the world are the Shoebill and Marabou that stand five feet tall.

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. while Average weight of Storks is 3-17 pounds depending on the species. Marabou is the largest species and weighs around 17 pounds.

Where do Ibis and Stork nest?

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.

Storks build their nests on trees and shrubs that stand in flooded water. They do so to keep predators away from eating the eggs. Both male and female birds participate in the construction of the nest, besides sharing the responsibility to incubate them for about five weeks, after which the eggs hatch. Baby Storks usually fledge 50-65 days after hatching. An interesting fact about parenting in Storks is that the parents sometimes throw some chicks out of the nests so that they can feed the healthy chicks well and support their survival.

How long do Ibis and Stork live?

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.

Storks can live for over 30 years in the wild. They have been known to live up to 35 years in captivity. The longest living species was a White Stork that lived for 39 years in Switzerland.

Are Ibis or Stork migratory birds?

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.

Storks migrate during winters to warmer regions as they cannot find food in colder weather. They are known to migrate long distances, for instance from Europe to Africa, sub-Saharan region to South Africa or India. They mostly migrate in huge groups.

Do Ibis and Stork fly in flocks?

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.

A group of Storks is known as a muster of Storks or a phalanx of Storks. These birds are highly sociable. They stay together and migrate in massive flocks that can even encompass a thousand birds. However, during the breeding season they prefer smaller groups or solitude.

Are Ibis or Stork protected?

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.

Storks are a protected species in Asia, Africa, and Europe. Conservation laws like the African Conservation Action Plan and the African-Eurasian Waterbird Agreement have come up in response to concerns of the International Union for Conservation of Nature that the Black Storks are not protected satisfactorily.

Are Ibis or Stork endangered?

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.

Storks are extant birds. They had become extinct in the UK about 500 years back but emerged back in the 1970s. They have however become extinct in Japan, Korea, Myanmar, and Bangladesh. The Adjutant Stork is endangered in India and Cambodia, and the Painted Stork is critically endangered in parts of Asia. Very few Storks are also left in Italy due to widespread poaching.

Can Ibis and Stork fly?

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.

Storks fly with their neck and legs stretched out. They flap and soar with their broad wings, using thermal air currents. They can reach altitudes of 1,500 metres above sea level and touch speeds of over 110 miles per hour. During migration, they fly nearly 4,400 miles.

Can Ibis and Stork swim?

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.

Storks are not swimmers. They do not prefer deep waters and usually choose shallow waters for their habitat.

Mating patterns among Ibis and Stork

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.

Storks start breeding when they are about four years old. The male bird is the first one to arrive at the nesting site. He initiates by building a nest or revamping an existing one and ducking on it. The male and female engage in elaborate mating dances. They raise a single brood each year, which consists of two to five eggs.

When is the mating season for Ibis and Stork ?

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.

The breeding season for Storks is generally the spring. This is usually from the start of February till the end of April.

Do Ibis and Stork mate for life?

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.

Storks are known to be monogamous and faithful to their partners during every breeding season and even for a few years. They may find new partners during migrations or in consecutive breeding seasons. In case of monogamous partners, they generally revisit their nesting site and use the same nests with little restoration.

How do Ibis and Stork sleep?

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.

Storks roost in colonies. They sleep on trees and shrubs surrounded by water. Some storks even sleep standing on one leg in water.

Can Ibis and Stork be eaten?

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.

Storks are edible and some people do eat them. However, the bird is protected, and it is illegal to kill them for food.

Can you hunt Ibis or Stork?

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

Thousands of White Storks lose their lives every year due to illegal hunting for sport, especially in Lebanon and Italy. The birds are also shot for their meat. All this is despite existence of laws to protect the bird.

Can you feed Ibis or Stork?

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.

Feeding wild animals and birds in public places is not permitted in places like USA, Singapore, and Dubai. Storks are huge birds and need to be fed a lot of food. In captivity, these birds are fed with fish, frogs, small birds, earthworms, lizards, and meat.