Flamingo
Flamingos are among the most recognizable birds on the planet, known for their vivid pink plumage, long necks, and legs built for wading through shallow water. Six species exist worldwide, spread across the Americas, Africa, southern Europe, and parts of South Asia. They favor saline and alkaline lakes, coastal lagoons, and estuaries where food is abundant and predators are few. Their downward-bent bills, unique among birds, work as precision filters: held upside down in the water, they pump out mud and silt while trapping algae, crustaceans, and small invertebrates. The pink and orange tones in their feathers come entirely from carotenoid pigments in their food. A flamingo raised on a diet without carotenoids would turn white. They are highly social, gathering in colonies that can reach hundreds of thousands of birds. Most species are listed as Least Concern by the IUCN, with a global population estimated at three to four million individuals.
Habitat and distribution
Flamingos are found on every continent except Antarctica and Australia, making them one of the most widespread waterbirds on Earth. They seek out environments that most other birds avoid: shallow salt lakes, soda lakes rich in minerals, coastal lagoons, and tidal estuaries. These harsh, briny waters keep large predators away and provide the dense blooms of algae and invertebrates that flamingos depend on. In the Americas, species range from the high Andean salt flats of Chile and Bolivia down to the Caribbean. In the Old World, populations spread across East Africa's Rift Valley lakes, southern Europe's Mediterranean wetlands, and coastal regions of India and Pakistan. Flamingos are not strongly migratory, but they will travel long distances when water levels drop or food becomes scarce at a particular site.
Diet
Few birds feed quite like a flamingo. They wade into shallow water and plunge their bent bill in upside down, then use a muscular tongue to pump water in and out up to four times per second. Rows of tiny plates called lamellae line the bill and act as filters, trapping algae, diatoms, small crustaceans such as brine shrimp, and other invertebrates while pushing out mud and water. The carotenoid pigments found in these foods, particularly in algae and crustaceans, are what give flamingos their famous pink and orange tones. The more carotenoids a bird consumes, the deeper its color. A flamingo kept on a diet lacking these pigments will gradually fade to white. Diet varies somewhat by species, with smaller flamingos tending to eat more algae and larger ones taking more invertebrates.
Behavior
Sociability is central to flamingo life. Colonies can swell to hundreds of thousands of birds, and individuals within them are rarely idle. Groups perform elaborate courtship displays in which birds march in tight formations, stretch their necks, snap their heads from side to side, and call loudly in near perfect unison. Scientists believe these synchronized routines help stimulate breeding activity across the colony at the same time, which improves the chances of survival for chicks. Outside of breeding, flamingos spend most of their waking hours feeding or preening. They are also well known for standing on one leg, a posture thought to help them conserve body heat by tucking a limb close to their warm torso. Flamingos can swim when water is deep enough, and they take to the air readily, often traveling at night.
Reproduction
Breeding in flamingos is a colony effort from start to finish. Pairs form after group courtship displays and together build a raised mound of mud, stones, and vegetation that can reach about 30 centimeters in height. The elevated shape protects the single egg from flooding and helps keep it cool in the heat of sun-baked lakeshores. Both parents take turns incubating the egg for around 27 to 31 days. Once the chick hatches, it is covered in grey down and has a straight, pink bill that will gradually curve as it matures. For the first week or two, adults feed their chick a protein and fat rich secretion called crop milk, produced in the digestive tract of both parents. Young flamingos gather in large nursery groups called crèches, supervised by a small number of adults, while the rest of the parents go out to feed.
Conservation
The global picture for flamingos is broadly positive. Most of the six species carry an IUCN status of Least Concern, supported by a worldwide population estimated at three to four million birds. That said, several regional populations face real pressure. Wetland drainage for agriculture, rising pollution in lake systems, and human disturbance at breeding colonies can cause birds to abandon nesting sites entirely, sometimes wiping out an entire season of reproduction. Climate shifts that alter water levels in key salt lakes add another layer of uncertainty. The Andean flamingo is the most vulnerable of the six species, listed as Vulnerable by the IUCN, with a total population of fewer than 40,000 individuals. Conservation efforts across multiple countries focus on protecting critical wetlands, monitoring colony sites during breeding season, and reducing pollution flowing into the lakes these birds rely on.
Technical factsheet
Frequently Asked Questions
Why are flamingos pink?
Their color comes entirely from carotenoid pigments found in the algae, brine shrimp, and other invertebrates they eat. The more of these foods a flamingo consumes, the deeper its pink or orange tone. A bird that stops eating carotenoid-rich food will gradually fade to white. Flamingos in zoos are given special dietary supplements to help them keep their color.
Why do flamingos stand on one leg?
Scientists believe this posture helps flamingos conserve body heat. By tucking one leg close to their warm torso, they reduce the amount of heat lost through their limbs, which is especially useful when standing in cold water for long periods. It appears to be an effortless position for them, since their legs lock into place without much muscle effort.
What do flamingos eat?
Flamingos feed mainly on algae, diatoms, brine shrimp, and small invertebrates found in shallow, salty water. They dip their bent bill upside down into the water and use their muscular tongue to pump water in and out rapidly. Tiny comb-like plates inside the bill filter out food while pushing mud and water back out. Diet varies slightly depending on the species.
Where do flamingos live?
Flamingos are found on every continent except Antarctica and Australia. They favor salt lakes, soda lakes, coastal lagoons, and tidal estuaries, places most other animals avoid. Major populations exist in East Africa, the Mediterranean, South Asia, and across the Americas from the Andes all the way to the Caribbean. They will travel long distances if water levels or food supplies at a site drop.
Are flamingos endangered?
Most of the six flamingo species are listed as Least Concern by the IUCN, with a global population of around three to four million birds. However, the Andean flamingo is classified as Vulnerable, with fewer than 40,000 individuals remaining. Threats across all species include wetland loss, pollution, and human disturbance at breeding colonies, which can cause birds to abandon an entire nesting season.
How do flamingos raise their chicks?
Both parents share incubation duties for about 27 to 31 days. After hatching, the chick is covered in grey down and has a straight bill that curves as it grows. Parents feed it a nutritious secretion called crop milk for the first couple of weeks. Chicks then join large nursery groups called crèches, watched over by a few adults while the rest of the parents go off to feed.
How many species of flamingo are there?
There are six species of flamingo in the world: the greater flamingo, the lesser flamingo, the Chilean flamingo, the Andean flamingo, the James's flamingo, and the American flamingo. They vary in size, color intensity, and the types of food they prefer. The greater flamingo is the largest and most widespread, while the Andean flamingo is the rarest, found only in the high salt flats of South America.