A flock of pink flamingos atop a mountain sounds like some sort of dream … After all, don't these long-legged wading birds live in low-lying wetlands, like the American Flamingo?

Incredibly, there are three flamingo species that make their homes high in the Andes Mountains of South America: the Andean, Chilean, and James's Flamingos. The James's Flamingo is the smallest and rarest of these, and was first described to science from Chile in 1886. Also known as the Puna Flamingo in recognition of its high-altitude habitat, the James's Flamingo was thought to be extinct for several decades, with no observations by ornithologists after 1924 until 1957, when the species was found breeding at a site in Bolivia. Though the James's Flamingo population numbers more than 100,000 individuals today, it is considered Near Threatened by the International Union for Conservation of Nature (IUCN) because of its limited range.

As well as being the smallest and rarest of the three Andean flamingo species, the James's Flamingo has other features that set it apart. 

Unique identification features of the James's Flamingo include its striking brick-red legs and feet, the short, bright yellow, black-tipped bill, and crimson feathering around the eye. Its feet lack a hind toe (hallux), a feature shared only by its close relative, the Andean Flamingo.

The James's Flamingo gives a variety of high-pitched, nasal honking calls. One vocalization, described as chu-ru-ru or choo-roo-roo, is also a local nickname for this bird.

Calls:

Calls:

Flock (mostly juvenile) calls:

The James's Flamingo begins to breed in the austral spring (November) with the nesting season extending through February. Its breeding success is directly affected by suitable rainfall and water levels. It nests in large colonies, often mixed with Andean and Chilean Flamingos. 

The oddly-shaped beak of the James's Flamingo is specialized for filter feeding, lined with tiny, hair-like ridges known as lamellae that strain out food items from the water and mud. This bird forages by walking slowly through the shallows, submerging its bill upside-down into the water to stir up bottom sediment and filter out diatoms, phytoplankton, and blue-green algae, its main foods.

James's Flamingos are monogamous and form long-term pair bonds, initiated within their breeding colonies during group displays known as wedding or marching dances. During these noisy, complex displays, large groups of males march and turn as one, while head-flagging (simultaneously stretching their necks upward and turning their heads back and forth) and wing-saluting (flapping their wings). These displays also include beak chattering and other vocalizations to attract the attention of female groups, who may respond with their own displays.   

Both members of a James's Flamingo pair use their bills to build a cone-shaped mud nest, mixing in small rocks and plant material if available. The nest has a shallow depression on top for their single egg. The pair may continue to build after their egg is laid in order to raise the height of the nest. 

The female James's Flamingo lays a single white egg, which she and her partner take turns incubating for roughly a month. Their chick hatches covered in whitish down and develops a second coat of dark gray down on the upperparts. Its bill is initially straight, only developing into the characteristic flamingo shape after several months. 

The parent flamingos take turns brooding their chick and feeding it with regurgitated “crop milk,” a high-fat, nutritious red liquid produced in the adults' crops. A few other bird families, including pigeons and doves such as the Mourning Dove, feed their chicks in this way.  

The young flamingo leaves the nest about 30 to 50 days after hatching and joins other flamingo chicks in a large group known as a crèche. Parents continue to feed their chick, locating it by voice within the crèche, until its bill grows into its final downcurved shape, meaning that the juvenile bird can finally feed itself.

The James's Flamingo has a restricted distribution. It breeds in the Andean altiplano (high plateau) within the central Andean dry Puna ecoregion, a habitat characterized by salt flats, dry grasslands and shrublands, and extremely cold temperatures. In the nonbreeding season, when lakes freeze up, this flamingo migrates to shallow wetlands at lower altitudes.

Due to its small size, the James's Flamingo prefers shallower water than other Andean flamingo species. It also occurs at higher elevations, up to 16,000 feet above sea level.

The biggest threat to the James's Flamingo is habitat loss caused by mining operations, which use large amounts of water. Road construction to access these mines also enables increased development around once-pristine lakes and wetlands.

Climate change can affect water levels in high-altitude lakes and wetlands, which could reduce the number of suitable breeding sites for this flamingo. Climate change will also affect the abundance of diatoms, a microalgae that is one of the James's Flamingo's main food sources. 

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ABC has partnered with fellow nonprofit Aves Argentina to create and expand a national park that protects the Laguna Mar Chiquita — a large salt lake in northern Argentina used by James's, Chilean, and Andean Flamingos.

Agricultural expansion has been increasing on lands near high Andean lakes. These activities expose the James's Flamingo and other highland flamingo species to toxic runoff from chemical fertilizers and other pollutants. ABC continues to advocate against the widespread use of systemic, water-soluble insecticides such as neonicotinoids. We are beginning to see new progress made in protecting birds and other wildlife from these harmful pesticides.

James's Flamingos risk fatal collision or electrocution with powerlines near their nesting or stopover sites. This species has also perished in collisions with fences. ABC provides online resources to learn more about how bird lovers, tower operators, and engineers can create a safer environment for birds by reducing communication tower collisions and fatalities.

Many of the rarest bird species in the Western Hemisphere remain relatively unknown. You can learn more about these birds and the threats they face by signing up for ABC's Bird of the Week email series, which frequently highlights these fascinating birds.

American Bird Conservancy and our partners throughout Latin America and the Caribbean have created and expanded more than 100 bird reserves, which protect upward of 1.1 million acres of vital habitat. Together, we've planted more than 6.8 million trees, helping to restore degraded and damaged habitat. You can help us continue to protect endangered birds by making a gift today.