Glaucous Macaw
The glaucous macaw is considered to be one of the rarest birds in the world. It is considered Critically Endangered and could become extinct in the wild.
A variety of 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, near the city of Corrientes. The bird was male.
Origin
The Glaucous macaw is a threatened parrot species that is native to South America. This majestic bird is distinguished by the blue feather pattern and a sharp beak capable of cracking open seeds and nuts. Glaucous macaws are known to form long-term monogamous couples and both parents assist in raising the chicks. The chicks are fed regular food in the first few weeks of life before being fed solid food as the chicks grow. Parents are a key part of teaching young macaws to fly and hunt.
The glaucous Macaw is extinct, but rumors about its existence continue to circulate around the world. The glaucous Macaw is believed to have been extinct in the 1800s due to the logging industry and cattle grazing in yatay (Butia) palm groves, where the birds gathered their food. The glaucous Macaw is believed to have returned, and is usually kept with its larger cousin, Lear's macaw.
In terms of habitat, the glaucous macaw can be found in subtropical forests of South America. They are usually located in areas where there are many palm trees. They are also known to be highly adaptable to a variety of forest habitats. These beautiful birds can be territorial and will defend the nesting and feeding area from intruders.
There have been a variety of reports about the glaucous macaw through the years, but most are considered to be unreliable. The most recent wild claim was reported by an avicultural friend of Ridgely who claimed to have seen four Glaucous Macaws in Califomia. This is a completely absurd claim until it can be verified with solid evidence. The absence of any credible data on this bird over the last century has been a reason for many experts to conclude that it is likely extinct, however they have always accepted the possibility of survival (Vielliard 1979, Ridgely 1981a, Sick 1985, Chebez 1986a). If it is able to survive, it is extremely unlikely to make it to huge numbers.
Habitat
The macaw glaucous is an impressive bird, renowned for its huge size and striking turquoise-blue coloration. The tail feathers and wings are long, enhancing its fluid and graceful moves. The bird is an emblem of loyalty and love. Its beak, which is mostly black, has a distinct shape that allows it crack seeds and nuts. They are a significant part of its diet.
IUCN has classified the Glaucous Macaw as Critically Endangered. It notes that there is a very small population of this bird and it is in risk of extinction. The species was once widespread, but is now only found in northern Argentina south Paraguay and north-eastern Uruguay and Brazil, from Parana state to the south, where it is nestled in cliffs that run alongside major rivers.
The Glaucous Macaw was not rare in its relatively small area, even though there was no proof of sightings after 1830. The specimens were collected until the year 1860 (in Corrientes). The last living Glaucous Macaw believed to originate from Brazil was displayed in the Buenos Aires Zoo back in 1936.
Re-evaluation of the historical documents suggests that this species was more generalist in its preferences for habitat, with a preference for the savanna ecosystem, which was interspersed with palm "islands" and areas of riparian forest along river systems. It was a specialist 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 other vegetable matter. It is a nesting place on steep slopes, in cliffs and sometimes in tree cavities.
As with other parrots this bird was social and probably gregarious. It was able to live up to 14.8 years in captivity. It was said to be a reliable breeder, reproducing year after year. Its life expectancy in the wild was between 50 and 80 years. This species was a powerful 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 more info beautiful of the species of parrots and its presence has a powerful impact in its surroundings. This huge South American parrot is known for its vibrant blue feathers, bright yellow eyes and the teardrop-shaped lappet on its lower beak.
In the past, little was known about the eating habits and diet of the Glaucous macaw. The first references to the subject I have found are in two works by H.W. Bates' "The Naturalist on the amazons" first published in 1863, and describes his 11-year journey in Brazil. Later, in his book "As Birds of the Brazilian Forests", he wrote about the similar experience. Both are about the Hyacinthine Macaw Anodorhynchus Aureolarius. I have no reason to believe that they do not apply to this species.
The Glaucous macaw is likely to be a specialist eater, consuming only palm nuts as well as tiny amounts of other fruits, seeds and vegetable matter. The diet of this species is likely to be affected by the clearing of forests by early colonists for agriculture and cattle ranching and the destruction of the yatay palm (Butia yatay) from which it could have gotten its majority of its food.
In the wild, it was common to see the Glaucous macaw in savannahs and forests that were subtropical in which palm trees were present. It was found in tree cavities, or on rocky banks and palm fronds. The female incubates and then lays two eggs on average.
The young Glaucous Macaws are altricial, which means they depend on their parents to look after them until they're fully grown and fly. Both males and females are extremely dedicated to their offspring and continuously hunt for food and protect them from predators.
Unfortunately the Glaucous Macaw has been eradicated from the majority of its previous range. The disappearance of this magnificent bird is likely due to the continued trapping for the pet trade, as well as disturbance of habitat, especially the wholesale removal of yatay palms which it could have gotten its main food supply. The Glaucous Macaw is classified as Critically Endangered.
Breeding
Glaucous Macaws are monogamous, long-term couples. Both parents are involved in the raising of their young. They breed in the dry season, when food is most abundant. The female lays up to three eggs, which are incubated by the mother for about 28 days. For the first few weeks following hatching, the chicks are fed daily by their parents through regurgitation. The young macaws then begin to explore and learn to feed themselves. They also learn how to fly and forage.
Like all birds, glaucous Macaws are extremely social creatures. They are active during daylight hours, and rest during the night. During the night, they will often seek refuge inside tree cavities or other nesting areas that are suitable. Their calls can be heard throughout the forest throughout the day.
The species is expected to rebound from its decline, however it is facing numerous threats, including habitat loss and illegal trapping of the bird for pet trade, and deforestation. There are only about 20 glaucous Macaws that are estimated to be living in the wild. The IUCN has classified the bird as "Critically endangered--possibly extinct."
The glaucous Macaw is sometimes referred to as Lear's Macaw or blue-throated Hummingbird is distinguished by its vibrantly blue feathers. It is a large parrot, with a length of 70 centimeters, and has a strong beak that is able to break open hard nuts and seeds. This gorgeous bird is native to South America and can be found in a variety of habitats, including forests, lowland grasslands and wetlands.
This magnificent bird is a sign of South American biodiversity. Its elegant appearance is reflected with its slim body, bright blue feathers and its light build. The black and curly beak helps it crack open nuts and seeds, which comprise a significant portion of its diet. It's a stunning bird, and is often featured in shows featuring birds. It is also a favorite in captivity, where it can be kept for a lifetime.