• 목록
• 답변
• 글쓰기
• 게시판 리스트 옵션
  • 수정
  • 삭제

Glaucous Macaw

The glaucous Macaw can be described as one of the rarest birds in the world. It is Critically Endangered and could become extinct in the wild.

A variety of Aviculturalists have reported sightings of this bird, but the most recent was in 1992. This alleged sighting was in the southwest of Paraguay close to the city of Corrientes. The bird was male.

Origin

The Glaucous macaw is a threatened parrot species native to South America. This majestic bird is distinguished by a blue feather pattern, and a sharp beak that is capable of breaking open nuts and seeds. Glaucous macaws have been known to form long-term monogamous families and both parents assist in raising the chicks. They feed their chicks regurgitated food for the first couple of weeks after birth, and then they begin to eat solid food as they grow. Parents play a vital role in teaching young macaws to fly and hunt.

The glaucous Macaw has gone extinct, yet rumors of its existence persist across the globe. The glaucous Macaw is believed to have gone extinct in the 1800s due to cattle grazing on yatay (Butia) palm groves where the birds gathered their food. The glaucous Macaw is believed to be making a comeback and is often kept with its larger mate, Lear's macaw.

In terms of habitat, the glaucous buy macaw can be found in subtropical forests of South America. They are typically located in areas where there are numerous palm trees. They are also known to be very adaptable to various types of forest habitats. These beautiful birds are territorial and will defend the nesting and feeding area from intruders.

There have been a variety of reports on the glaucous macaw through the years, but they are considered to be not reliable. The most recent report of a wild incident is an friend of Ridgely's who claimed to have seen four Glaucous macaws in Califomia. This claim is completely unacceptable until it is confirmed by hard evidence. The absence of any credible data on this bird over the last century has led many experts to conclude that it is likely extinct, yet they have always been willing to accept the possibility of survival (Vielliard 1979, Ridgely 1981a, Sick 1985, Chebez 1986a). If it does survive, it is extremely unlikely to be seen in huge numbers.

Habitat

The glaucous macaw is a striking bird that is known for its large size and striking turquoise-Melody blue spix macaw coloration. Its wings and tail feathers are long, which aids in its graceful and agile movement. It is also an emblem of love and loyalty. Its beak, which is primarily black, has a distinctive shape that allows it to crack nuts and seeds. They are a significant part of its diet.

The Glaucous Macaw is considered Critically Endangered by the IUCN which states that it has an extremely small population and is at a high chance of becoming extinct. The species was once relatively widespread, but it is found only in northern Argentina and southern Paraguay and north-eastern Uruguay and Brazil from Parana state southwards where it was a nesting place in cliffs along major rivers.

Although there haven't been any credible sightings of the species since 1830 however, the Glaucous Blondie scarlet macaw bird seemed not to be a rare species in its relatively limited range; specimens were taken up to 1850 (in Corrientes). The last known living Glaucous Macaw was displayed at the Buenos Aires Zoo in 1936 and is believed to be from Brazil.

Reassessment suggests that this species is a generalist and prefers areas of savanna that are that is interspersed with palm "islands", and bands of riparian forests along river systems. It was a specific feeder of palm fruits, specifically those of the chatay palm (Butia yatay) but it was likely to also consume ripe and unripe fruits such as berries, nuts, and vegetable matter. It is a nesting place on steep slopes or in cliffs, and also in tree cavities.

As with other parrots this bird was social and was likely to be gregarious. It was able to live up to 14.8 years in captivity and was said to be a reliable breeder that reproduced year after year. The life expectancy of this species in the wild was 50-80 years. This species was a formidable seed disperser and could have contributed to the success of the yatay palm in its native habitats.

Feeding

The Glaucous Macaw (Anodorhynchus glaucus) is among the most magnificent of all the parrot species, and its presence commands an enormous impact on its surroundings. This large South American bird is known for its vivid blue feathers and yellow eyes, as well as its distinctive teardrop-shaped lipped sleeve that covers the lower part of its beak.

In the past, little was known about the feeding habits of the Glaucous Macaw. The first references to the subject I have found are in two works by H.W. Bates' "The Naturalist on Amazons" which was first published in 1863, and describes his 11-year sojourn in Brazil. In his later book "As Birds of the Brazilian Forests" Bates wrote about the same experience. Both of these are about the Hyacinthine Macaw (Anodorhynchus aureolarius) however I see no reason to think that they're not applicable to this species.

It is likely that the Glaucous Macaw was a specialized for the consumption of palm nuts. It also ate other seeds, fruits and vegetable matter in small quantities. The diet of this species was likely heavily influenced by the clearing of forests for agriculture and cattle-ranching by early colonists as well as the felling of yatay (Butia) palms from which it got a large portion of its nutrition.

In the wild, the Glaucous Macaw was often found in subtropical forests that had the savannahs and cliffs surrounded by palm trees where it nested in tree cavities, on rocky banks or the palm fronds' top. On average, a clutch of two eggs was laid and incubated by the female.

The young Glaucous Macaws are altricial, meaning they depend on their parents to look after them until they are fully grown and fly. Both males and females are dedicated to their offspring, and will hunt for food and protect them against predators.

Unfortunately the Glaucous Macaw has been eradicated from the majority of its previous range. The disappearance of the magnificent bird is likely due to the continued trapping of birds for the pet industry and disturbance of habitat, specifically the wholesale clearing of palm yatays which could have been their primary food source. The Glaucous macaw parrot cost is listed as Critically Endangered.

Breeding

Glaucous macaws are typically monogamous pairs and both parents play part in raising the young. They breed during the dry season when the availability of food is at its highest. The female lays an egg clutch that ranges from two to three eggs that are incubated for around 28 days. When the chicks are born, they are fed by their parents via regurgitation for the first couple of weeks of their life. The young macaws begin exploring and learning to feed themselves. They are also taught how to fly and hunt for food.

Like all birds, glaucous macaws are extremely social creatures. They are active during daylight hours and rest at night. At night they usually seek shelter inside tree cavities or other suitable nesting places. They are extremely vocal and their calls can be heard throughout the forest during the day.

The species is expected to recover from the decline, but it faces many threats including habitat loss, illegal trapping of the bird to sell on the pet market and deforestation. It is estimated that there are less than 20 glaucous macaws that are in the wild. The IUCN has classified the bird as "Critically endangered--possibly extinct."

The glaucous Macaw is sometimes referred to as Lear's great green macaw, or the blue-throated Hummingbird, is distinguished by its bright blue feathers. The parrot measures 70 centimeters long and has an impressive beak that is capable of slicing open seeds and nuts. This beautiful bird is native South America and can be found in various habitats, including grasslands, forests, and lowland wetlands.

This magnificent bird is a sign of South American biodiversity. Its elegant appearance, with its slender body, light build, and vibrant blue feathers. The beak is curved and black, which aids it crack open the nuts and seeds that make up a major portion of its diet. It is a stunning bird and is often used in bird shows. It is also a favorite in captivity, where it could be kept for a lifetime.