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Andean flamingo

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Scientific name
Phoenicoparrus andinus

Higher classification





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James's flamingo, Chilean flamingo, American flamingo, Lesser flamingo, Andean goose

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The Andean flamingo (Phoenicoparrus andinus) is one of the rarest flamingos in the world. It lives in the Andes mountains of South America. Until 2014 it was classified in genus Phoenicopterus. It is closely related to James's flamingo, and the two make up the genus Phoenicoparrus. The Chilean flamingo, Andean flamingo and James's flamingo are all sympatric, and all live in colonies (including shared nesting areas).


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Andean flamingo


Andean flamingo Andean Flamingo Our Endangered World

The flamingo has a pale pink body with brighter upperparts, deep vinaceous-pink lower neck, breast, and wing-coverts. It is the only flamingo species with yellow legs and three-toed feet. The bill of the Andean flamingo is pale yellow and black.


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These flamingos are filter-feeders and their diet ranges over the entire spectrum of available foods, from fish to invertebrates, from vascular plants to microscopic algae.

Andean flamingo Andean Flamingo Animal Facts and Information

The flamingos feed from the bottom layer of the lake for small particles, mainly diatoms. They have a deep-keeled bill; the upper mandible is narrower than the lower, creating a gape on the dorsal surface of the bill. The bill morphology facilitates feeding of diatoms through inertial impaction. This mechanism entails that food particles denser than water, such as diatoms, would impact the filtering surface in the bill causing water to flow out of the mouth and leaving diatoms in the flamingo's bill. The flamingos forage in shallow salty waters for resources. They exhibit the most flexible foraging pattern compared to that of the Chilean and James's flamingos.

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A study has showed that when grouping the Andean flamingos with Chilean flamingos or with James's flamingos, Andean flamingos adopt the foraging patterns of the species it is grouped with. Thus, when grouped with the Chilean Flamingo, it will use a moderate and deep foraging depth strategy more than or the same as expected. If they are grouped with James's flamingo they will adopt the edge and the shallow foraging strategy. However, the overall foraging behavior of Andean Flamingo remains unclear and further studies are needed to determine this process.

Distribution, habitat and movements

This Andean flamingo is native to the wetlands of the high Andes mountain range from southern Perú to northwestern Argentina and northern Chile. The Andean flamingo is a migratory bird with the ability to travel up to 700 miles in one day. In the summer, they live in salt lakes and migrate to the lower wetlands for the winter. The cause of this migration from summer to winter is possibly due to the extreme aridity of salt-flats during the winter. The path of migration is unknown, but it is thought to occur between the Chilean breeding grounds and the wetlands of central and western Argentina.

Status and conservation

The Andean flamingo is considered a vulnerable species due to unnatural changes in its habitat. The major changes are due to the mining business and human disturbances.


The Andean flamingo's habitat is constantly changing due to human activity. The primary threat to the flamingo population is mining excavations, which occur at the end of the summer rainy season. The habitat of the Andean flamingo is rich in boron compounds, specifically borax. Borax is fairly toxic at high dosages to animals such as the Andean flamingo, but not to humans. Studies testing the effects of borax exposure in animals show that excess boron causes skeletal malformations, cardiovascular defects and degeneration of the testis. Borax is a derivative of boric acid; a study comparing the toxicology of borates determined that salts of boric acid produce comparable effects. A study on the mining environment determined as little as five grams of borax can produce adverse effects in animal populations, but human workers remain unaffected at these concentrations. Therefore, the miners remain unaffected while the animals suffer from developmental and reproductive toxicity.

A study on Salinas Lake in Peru shows that mining companies have established themselves adjacent to the flamingos' nesting sites, and some mining is performed near flamingo breeding grounds and feeding sites. Flamingos abandoned their nesting sites if mining was initiated after the establishment of nesting colonies and in close proximity. Results from this study showed that an increase of hydrocarbon exploration resulted in a decreased success rate for breeding. Less than one percent of the flamingos observed were juveniles. The decreased reproductive success may be due to borax exposure or to an altered environment caused by bulldozers disturbing the lake bed. Mining creates a muddy environment, which entraps flamingos, thus increasing mortality. Surveys conducted on residents near the mining activities report sightings of dead flamingos exhumed by the bulldozers.

The extraction process also affects the water availability. Andean flamingos filter surface water for food, but borax mining pollutes this water. Along with the pollution, the extractions expedite the removal of lake moisture. By limiting the amount of water in the lake, mining companies can increase visibility, thus contributing to more optimal mining. A study comparing the correlation between water availability and flamingo population determined that the number of flamingos was strongly correlated to the proportion of water in the lake. With an insufficient food supply and a disturbed habitat, the decrease in offspring seems inevitable.

Human disturbance

Not only are the flamingos' offspring numbers diminished by mining activities, but they are also affected by the egg collection by locals. This illegal hunting has increased over time due to an increase in international demand for flamingo eggs. Poaching is conducted by organized groups within Chile; the group members trap the flamingos and export them to Europe, the United States, and other oversea destinations. The exportation process in conducted mainly in the Altiplano, which is an area that has deep cultural roots in egg poaching. During the reproductive season, local families also take eggs from flamingo nests eggs. The removal of eggs can disturb the nesting process and cause the flamingo to abandon its nest, even if some eggs remain. Egg removal might be acceptable if the local populations were malnourished, but studies on the diets of the local people show no protein deficiency. In the area of study, the common people raise llamas and alpacas, which offer a higher content of protein than flamingo eggs.

Alongside mining activities, unregulated tourism has placed its toll on the flamingos' habitat. Over time, numerous peat bogs have accrued throughout the land. These bogs gradually build up and begin to overflow into the lake. When the bogs enter the lake, they decrease the surface area of the water and prevent the flamingos from entering the lake to feed. As a result of the mining and the tourism, new infrastructure, such as highways, are being implemented into the Andes. There are now highways that run alongside the flamingos' habitat. With the addition of these roads, accessibility to the flamingos' habitat increases, leading to more commercial mining and tourism, which in turn results in detrimental effects to the Andean flamingo population. The development of new infrastructure has caused severe fragmentation of the lake, diminishing the biodiversity and increasing the possibility of extinction for all species.

The demand for surface and underground water, energy production, and transportation, as well as unregulated tourism have all increased in the last two decades. These increases were documented to be most significant in Chile, the main location for Andean flamingo breeding colonies. As a consequence, these areas are concentrated with toxic compounds due to mineral and hydrocarbon exploration; this exploitation has increased in the last two decades. Since the 1980s, the number of successful breeding colonies and the total production of chicks of Andean flamingos declined. As a result, the Andean flamingos are threatened species.

Conservation plans

According to the International Union for Conservation of Nature and Natural Resources, the Andean flamingo is an "insufficiently known species." Thus, despite being negatively affected for at least the previous two decades, it was finally declared endangered in September 2010. In this announcement, it was stated that this flamingo would be protected under the Endangered Species Act of 1973. Most of the areas in which the flamingos reside, both in the summer and the winter, have been covered by the implementation of National Parks. However, these parks are absent in habitats occurring changes. Thus, the main breeding grounds are still susceptible to outside disturbances that decrease the population of the flamingos. Because the Andean flamingo is a recent addition to the endangered species list, there have been few implemented plans to protect their species. However, the National Institution of Natural Resources ( is currently developing a plan. This group is working with conversationalists to find a way to solve the problems of borate extraction, egg collecting and poaching. The plan they are developing consists of an environmental education strategy to inform businessmen, workers, villagers, and any other people who pose as a threat to the flamingos. Increasing awareness is already creating its place in society. For local authorities in the Salinas Lake district have created a watch out post to prevent illicit actions from happening and to find possible solutions to present problems. Creation of National Parks has decreased the egg collecting; however, environmental education will be necessary to completely eliminate this activity.

The Flamingo Specialist Group, established in 1971, is actively trying to inform the public on the vulnerability of flamingos. They produce an annual newsletter to tell readers the current status of several species. In the year 2000 this group conducted a census that revealed a total population of less than 34,000 Andean flamingos, giving them the label of most rare species. This group also makes great strides to develop new contacts across the world to inform everyone possible. Recently, this group has joined sides with the International Union for Conservation of Nature in order to create an action plan for the flamingos. A meeting was held in Miami, Florida in 2000 to develop a group to control an action place to protect the six species and subspecies of flamingos.

Under the auspices of the Convention on Migratory Species of Wild Animals (CMS), also known as the Bonn Convention, the Memorandum of Understanding (MoU) on the Conservation of High Andean Flamingos and their Habitats was concluded and came into effect on 4 December 2008. The MoU covers four range States (Argentina, Bolivia, Chile and Peru). As of August 2012, three of them (Bolivia, Chile and Peru) have signed the MoU. The MoU aims to improve the conservation status of the species and their habitats through coordinated and concerted actions across the range States.

Andean flamingo


Andean flamingo Wikipedia

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