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Glaucous Macaw
The glaucous Macaw can be described as one of the rarest birds in the world. It is critically endangered and may even be extinct.
The bird has been observed by aviculturists from various countries, but the latest sighting was reported in 1992. The alleged sighting was reported to be in the southwest region of Paraguay near the city Corrientes. The bird was a male.
Origin
The Glaucous macaw is an endangered parrot species native to South America. This magnificent bird has a unique blue feather pattern and strong beak that is capable of breaking open hard seeds and nuts. Glaucous Macaws live in monogamous pair and both parents tend the chicks. They feed their chicks regurgitated food for the first few weeks after birth, and then they begin eating solid foods as they grow. The parents also are a key part of teaching the young macaws how to fly and hunt.
The glaucous macaw is considered to be extinct in the wild, but reports of this beautiful bird's existence are still spreading throughout the world. It is estimated that the glaucous macaw was extinct in the 1800s because of logging and cattle grazing of yatay palm (Butia yatay) groves, where these birds mostly ate their food. The Glaucous Macaw is believed be making a comeback and is often kept along with its larger relative, Lear’s macaw.
The glaucous Macaw lives in subtropical rainforests of South America. They are typically located in areas with a lot of palm trees, and are thought to be extremely adaptable to various types of forested habitats. These beautiful birds can be territorial and defend the feeding and nesting area from intruders.
There have been a number of reports involving the glaucous macaw throughout the years, but they are considered to be unreliable. The most recent report of a wild occurrence involves a friend of Ridgely's that claimed to have seen four Glaucous macaws in Califomia. This is completely untrue until it is verified with solid evidence. The absence of any reliable evidence of this bird in the past century has been a reason for many experts to conclude that it is likely extinct, yet they have always been willing to accept an extremely remote possibility of its existence (Vielliard 1979, Ridgely 1981a, Sick 1985, Chebez 1986a). If it is able to survive it is highly unlikely to be seen in large numbers.
Habitat
The macaw glaucous is an impressive bird that is renowned for its size and stunning turquoise-blue coloring. Its long tail and wings accentuate its graceful and agile movements. The bird is an emblem of loyalty and love. Its beak, which is mostly black, is distinctive in its shape that allows it to crack seeds and nuts. They form a large part of its diet.
The Glaucous Macaw is considered Critically Endangered by the IUCN, which notes that it is a small population and is at a significant danger of disappearing. This species was formerly relatively widespread, but it is found only in northern Argentina, southern Paraguay, north-eastern Uruguay and Brazil from Parana state southwards, where it is nestled in cliffs on major rivers.
While there have been no reliable sightings of this species since 1830 however, the Glaucous Macaw seemed not to be extremely rare within its comparatively small range; specimens were captured from 1830 to 1860 (in Corrientes). The last known living Glaucous Macaw was seen at the Buenos Aires Zoo in 1936 and is believed to have come from Brazil.
Re-evaluation of the historical documents suggests that this species was a very generalist in its habitat preferences, with a preference for the savanna ecosystem, which was interspersed with palm "islands" and bands of riparian forest along river systems. It was a specialized feeder of palm fruit especially those of the yatay (or chatay) palm (Butia). However it also ate ripe and unripe fruits and berries, nuts, and vegetable matter. It nests on steep slopes, in cliffs and sometimes in tree cavities.
Like all parrots, this bird was social and was likely to be gregarious. It was said that it could live up to 14.4 years in captivity, and was a reliable breeder who reproduced year after year. In the wild, the lifespan was likely to be between 50 and 80 years. This species was a powerful disperser of seeds, and could have contributed to the success of the palm yatay species in its natural habitat.
Feeding
The Glaucous Macaw is one of the most stunning parrots. Its presence can have an enormous impact on its environment. This large South American bird is known for its vibrant blue feathers and yellow eyes, as well as the distinctive teardrop-shaped lappet that brackets the lower portion of its beak.
Until recently very little was known about feeding habits of the Glaucous Macaw. The first references to the subject I have discovered are in two books by H.W. Bates' "The Naturalist on Amazons" first published in 1863, which describes his 11-year journey in Brazil. Later in his book "As Birds of the Brazilian Forests", he wrote about the similar experience. Both of these are about the Hyacinthine Macaw Anodorhynchus Aureolarius. I have no reason to believe that they don't apply to this species.
It is likely that the Glaucous Macaw was a specialized feeder of palm nuts and also ate other seeds, fruits and vegetable matter in small amounts. The diet of this species is likely to have been influenced by the clearance of forests by the early colonists to cultivate and cattle ranching and the destruction of the yatay palm (Butia yatay) from which it may have gotten its majority of its food.
In the wild it was commonplace to find the Glaucous macaw in subtropical forests and savannahs in which palm trees were present. It hid in tree cavities or on rocky banks and palm fronds. On average two eggs were laid in a clutch. eggs was laid and then incubated by the female.
The young Glaucous Macaws are altricial, which means they depend on their parents to care for them until they're fully fledged and can fly. Both males and females are very committed 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 majestic bird is likely to be due to trapping that continues for the pet industry as well as disturbance of habitat, specifically the massive removal of palm yatays, which may have been its main food source. The Glaucous Macaw is classified as Critically Endangered.
Breeding
Glaucous Macaws form monogamous long-term pairs. Both parents are involved in the raising of their children. They breed during the dry season, when the availability of food is at its greatest. The female lays two to three eggs that are incubated by the mother for about 28 days. When the chicks are born they are fed by their parents through regurgitation for the first few weeks of their lives. The young macaws then begin to explore their surroundings and learn how to eat themselves. They also learn to fly and forage.
Like all birds, glaucous Macaws are social animals. They are active during the day and are restful at night. They usually seek shelter in cavities in trees or other suitable nesting sites for the night. They are very vocal and their calls can be heard throughout the forest during the day.
Although chestnut fronted macaw is hoped the species will recover from its decline in the wild, the bird faces many threats, including loss of habitat, illegal trapping for the pet trade and deforestation. There are only about 20 glaucous Macaws that are believed to be in the wild. The IUCN classifies the bird as "Critically Endangered--Possibly Extinct."
The glaucous macaw is also known as the Lear's macaw or the blue-throated hummingbird. It is distinguished by its vibrant blue feathers. It is a large bird, measuring 70 centimeters in length and has a sturdy beak that can crack open hard nuts and seeds. This gorgeous bird is native to South America, and it can be found in many habitats, including grasslands, forests, dry lowland, and wetlands.
This majestic bird is an emblem of South American biodiversity. Its appearance is elegant with its slim build, lightweight body and vivid blue feathers. Its black and curved beak helps it crack open nuts and seeds, which comprise a significant portion of its diet. It is a beautiful bird, and is frequently featured in bird shows. It is also a favourite in captivity, where it could be kept for a lifetime.
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