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The glaucous Macaw is among the rarest birds in the world. It is considered Critically Endangered and could be extinct in the wild.
Many Aviculturalists have reported sightings of this bird however the most recent sighting was in 1992. This alleged sighting occurred in the southwestern region of Paraguay close to the city of Corrientes. The bird was male.
Origin
The Glaucous macaw is an endangered parrot species that is native to South America. This magnificent bird has a unique blue feather pattern and powerful beak that is capable of cracking open tough nuts and seeds. Glaucous macaws are known to form long-term monogamous families and both parents help raise the chicks. They feed their chicks regurgitated food for the first few weeks after birth, before they begin to eat solid foods as they develop. Parents are also responsible for teaching young macaws to fly and hunt.
The glaucous Macaw has gone extinct, yet rumors of its existence continue to spread across the globe. The glaucous Macaw is believed to have gone extinct in the 1800s due to logging and cattle grazing on yatay (Butia) palm groves, where the birds gathered their food. The glaucous Macaw is believed to have made a comeback, and is often kept with its larger relative, Lear’s macaw.
In terms of habitat, the glaucous macaw can be found in subtropical forests of South America. They are most often found in areas where there are numerous palm trees. They are also known to be highly adaptable to a variety of forest environments. These beautiful birds are also known to be very territorial and will protect their feeding and nesting areas from invaders.
There have been a variety of reports involving the glaucous macaw through the years, but many are considered to be not reliable. The most recent claim of a wild incident is a friend of Ridgely's who claimed to have seen four Glaucous macaws in Califomia. This claim is untrue until it can backed up with hard evidence. The lack of any acceptable data on this bird over the past century has caused many experts to think that it's likely extinct, however they have always been willing to accept the possibility of existence (Vielliard 1979, Ridgely 1981a, Sick 1985, Chebez 1986a). If it survives, it will be extremely rare to witness large numbers.
Habitat
The glaucous macaw is a striking bird that is known for its large size and stunning turquoise-blue coloration. Its long tail and wings enhance its graceful and agile moves. The bird is also a symbol of love and loyalty. Its beak, which is primarily black, has a distinct shape that allows it crack seeds and nuts. They form a large part of its diet.
The Glaucous Macaw is considered Critically Endangered by the IUCN which states that it is a small population and is at high risk of extinction. The species was once widespread but is now found in northern Argentina and south Paraguay and north-eastern Uruguay, as well as Brazil from Parana state to the south, where it resides in cliffs along major rivers.
While there have been no confirmed sightings of this species since 1830, the Glaucous Macaw seemed not to be extremely rare within its limited range. specimens were captured up to 1860 (in Corrientes). The last known living Glaucous Macaw was displayed at the Buenos Aires Zoo in 1936 and is believed to be from Brazil.
Re-evaluation of the historical records suggests that this species was a rather generalist in its preferences for habitat, with a preference for areas of savanna that were interspersed with palm "islands" and forests of riparian along river systems. It was a particular eater of palm fruits, specifically those of the yatay or chatay palm (Butia yatay) but it was likely to also consume ripe and unripe fruits, nuts, berries and vegetables. It nested on steep slopes and in cliffs, sometimes in tree cavities, and laid an average clutch of two eggs.
The bird was likely to be gregarious and social, just like other parrots. It could live up to 14.8 years in captivity and was believed to be a dependable breeder that reproduced year after year. Its life expectancy in the wild was perhaps between 50 and 80 years. This species was a potent disperser of seeds and may be a factor in the success of the palm yatay species in its natural habitat.
Feeding
The Glaucous Macaw (Anodorhynchus glaucus) is one of the most magnificent of all the parrot species and has a an immense impact in its environment. This huge South American bird is known for its vibrant blue feathers and yellow eyes, as well as the 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 earliest detailed references I have found are in two publications by H.W. Bates' "The Naturalist on Amazons", first published in 1863, which describes his 11-year stay in Brazil. In his later book "As Birds of the Brazilian Forests" Bates wrote about the similar experience. Both of these are about the Hyacinthine Macaw (Anodorhynchus aureolarius), but I have no reason to believe that they are not applicable to this species.
It is likely that the Glaucous Macaw was a specialized in the consumption of palm nuts, and also took other seeds, fruits and vegetable matter in small amounts. This species' diet was likely heavily influenced by the clearing of forests for agriculture and cattle-ranching by early colonists, as well the yatay (Butia) palms from which it got a large portion of its nutritional value.
In the wild, the Glaucous Macaw was 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 top of palm fronds. The female incubates and lays two eggs on average.
The young Glaucous Macaws are altricial, meaning they rely on their parents to care for them until they are fully grown and able to fly. Both males and females are committed to their offspring and hunt for food and protect them from predators.
Unfortunately the Glaucous Macaw has been eliminated from most of its former range. The disappearance of this majestic bird is most likely due to the continued trapping of pets for the pet trade and disturbance of habitat, especially the mass clearing of yatay palms from which it could have gotten its primary food source. The Glaucous Macaw is listed as Critically Endangered.
Breeding
Glaucous macaws usually form long-term monogamous pairs and both parents play an active role in the raising of the young. They breed during the dry season when the availability of food is at its greatest. Females lay up to three eggs, which are incubated by the mother for approximately 28 days. When the chicks are born, they are fed by their parents via regurgitation during the first few weeks of their lives. The macaws' young begin to explore their surroundings and begin to learn to eat themselves. They also learn to fly and hunt for food.
Like all birds, glaucous macaws are extremely social creatures. They are active during the day, but are restful at night. They will often seek shelter in cavities in trees or other suitable nesting sites to sleep. 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, however it faces many threats including habitat loss and illegal trapping of the bird to sell on the pet market and deforestation. It is believed that there are only about 20 glaucous macaws that are in the wild. The IUCN has classified 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. The parrot measures 70 centimeters long and features a an impressive beak that is capable of breaking open nuts and seeds. This beautiful bird is native to South America, and it is found in various habitats such as grasslands, forests, dry lowland, and wetlands.
This magnificent bird is a symbol of South American biodiversity. Its appearance is elegant with its slender body, vibrant blue feathers and its light build. Its beak is curvaceous and black, which aids it break open the nuts and seeds that comprise a large portion of its diet. It's a beautiful bird, and is often featured in shows featuring birds. It is also popular in captivity where it can live for a lifetime.