Grey parrot

The grey parrot (Psittacus erithacus), also known as the Congo grey parrot, is an African parrot in the family Psittacidae. These birds are known for their bright feathers, clever minds, and ability to mimic human speech. They live mainly in forests across Africa and are very social animals.

Psittacus erithacus was previously also known as the African grey parrot until the Timneh parrot (Psittacus timneh), previously treated as a subspecies, was elevated to a full species. Grey parrots are highly intelligent and can learn many words and phrases, making them popular pets for people who can give them the right care. They also play an important role in their natural habitats.

Taxonomy

The grey parrot was first described in 1758 by the Swedish naturalist Carl Linnaeus. He named it Psittacus erithacus and placed it in the genus Psittacus, which means "parrot" in Latin.

The grey parrot has no accepted subspecies, though it was once thought that the Timneh parrot was a subspecies. Recent studies show they are separate species. Some checklists still list the Príncipe grey parrot as a subspecies, but others classify it under the Timneh parrot.

Description

The grey parrot is a medium to large bird with mostly grey feathers and a black bill. It usually weighs about 400 g (14 oz) and measures around 33 cm (13 in) long, with a wingspan of 46–52 cm (18–20½ in). The head and wings are darker than the body, and the tail feathers are red.

Both male and female grey parrots look similar. Young parrots look much like adults, but their eyes are dark grey to black, while adults have yellow irises. Grey parrots can live for 40–60 years when kept as pets, though they usually live around 23 years in the wild. They begin breeding at 3–5 years old and lay 3–5 eggs at a time.

Distribution and habitat

The grey parrot lives in equatorial Africa, including countries such as Angola, Cameroon, the Congo, and Kenya. These birds prefer dense forests but can also live near forest edges and in open areas like savannas. Their numbers are decreasing, partly because many are taken for the pet trade and forests are being cut down for timber.

Some areas, like Ghana, have seen very large drops in grey parrot populations over the years. In other places, such as Cameroon, the populations seem to be more stable. In South Florida, some grey parrots have been seen after escaping or being released, but they are not known to breed there naturally.

Behaviour and ecology in the wild

Grey parrots are interesting birds that live in the wild across Africa. Scientists still have much to learn about them because these parrots are cautious and hard to study. However, we do know that they can copy many sounds they hear, just like parrots that live with people. In one place called the Democratic Republic of the Congo, scientists recorded two wild grey parrots that could make over 200 different calls, including sounds made by other birds and even a bat.

These parrots mostly eat fruit, nuts, and seeds, and they also enjoy flowers, tree bark, insects, and snails. They often search for food on the ground. When it is time to have baby parrots, a male and female pair stay together and build their nest inside a hollow tree. The female lays three to five eggs and sits on them for 30 days while the male brings her food. After the eggs hatch, both parents care for the baby parrots until they are old enough to leave the nest around 12 weeks later.

Conservation

Grey parrots face many dangers in the wild. Animals like palm-nut vultures and raptors prey on them, and monkeys eat their eggs and young. But the biggest threat comes from humans. Many grey parrots are captured and sold, with thousands traded each year. Unfortunately, a large number of these birds do not survive the journey to the market.

Because of these threats and loss of habitat, grey parrots are now considered endangered. In 2016, they were given the highest level of protection under international law to help stop illegal trading. In some places, like Kenya, owners must have special permits to keep these birds legally.

In captivity

Grey parrots are very popular pets because they can mimic human speech. They are known for copying sounds they hear and need lots of attention and activities to stay happy. Without enough care, they can become stressed and may pluck their feathers.

These birds are very smart and can learn to understand and use words in the right way. They can even make up new words for things they don’t know the names of. Scientists have studied their intelligence and found they can do tasks similar to those done by human children aged four to six. They can also show kindness by sharing with others, even if it means going without themselves.

Diet

When kept as pets, grey parrots can eat bird pellets, fruits like apples and oranges, and vegetables such as carrots and peas. They also need calcium to stay healthy.

Disease

Grey parrots can get sick from infections, tumors, and diseases like psittacine beak and feather disease. Young birds are more likely to get this disease, which can make their feathers look fluffy and affect their movement.

Intelligence and cognition

Grey parrots are highly intelligent and have been shown to perform tasks at the cognitive level of a four- to six-year-old human child. They can learn number sequences, associate human voices with faces, and even create new labels for objects using existing words. For example, they might say "banerry" for "apple" if they know "banana" and "cherry."

Research by scientist Irene Pepperberg with a parrot named Alex demonstrated advanced cognitive abilities, including the ability to add numbers and understand the concept of zero. Grey parrots have also shown altruistic behavior, such as sharing nuts with their companions, and have been observed to have musical preferences, choosing specific songs to dance and sing along to.

Some studies suggest that foot preference in grey parrots may be linked to their vocabulary size, with right-footed parrots knowing more words than left-footed ones. This has led scientists to propose that parrots may have lateralization of brain function, similar to mammals.

Mutations

Grey parrots can have natural colour mutations, such as the Blue Ino (all white), Incomplete Ino (light pigmentation), and Blue (white tail). Through breeding, other colour variations have been developed, including Red Pied, F2 Pied, Grizzles, Ino, Incomplete, Parino, Lutino, Cinnamon, and Red Factor. The Red Factor variety, first bred by South African and New Zealand breeders, can be mostly red and varies in price based on the amount of red plumage.

History

The domestication of grey parrots dates back to around 2000 B.C., with images of these birds found in ancient Egyptian hieroglyphics. The Greeks and the Romans highly valued them and often kept them in special cages. In more recent times, due to concerns over illegal trading, grey parrots were listed as Endangered in 2016 on the IUCN Red List.