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Flamingos or flamingoes () are a type of wading bird in the family Phoenicopteridae, which is the only extant family in the order Phoenicopteriformes. There are four flamingo species distributed throughout the Americas (including the Caribbean), and two species native to Afro-Eurasia.
A group of flamingoes is called a "flamboyance", or a "stand".
Traditionally, the long-legged Ciconiiformes, probably a paraphyletic assemblage, have been considered the flamingos' closest relatives and the family was included in the order. Usually, the and of the Threskiornithidae were considered their closest relatives within this order. Earlier genetic studies, such as those of Charles Sibley and colleagues, also supported this relationship. Relationships to the waterfowl were considered as well, especially as flamingos are parasite by feather louse of the genus Anaticola, which are otherwise exclusively found on ducks and geese. The peculiar presbyornithids were used to argue for a close relationship between flamingos, waterfowl, and waders. A 2002 paper concluded they are waterfowl, but a 2014 comprehensive study of bird orders found that flamingos and grebes are not waterfowl, but rather are part of Columbea, along with doves, sandgrouse, and .
For the grebe-flamingo clade, the taxon Mirandornithes ("miraculous birds" due to their extreme divergence and apomorphies) has been proposed. Alternatively, they could be placed in one order, with Phoenocopteriformes taking priority.
Prehistoric species of flamingo:
While walking, a flamingo's legs may appear to bend backwards. This appearance is due to the middle joint on their legs being their ankle, not their knee. Flamingos also have webbed feet that aid with swimming and they may stamp their feet in the mud to stir up food from the bottom.
Flamingos are capable flyers, and flamingos in captivity often require wing clipping to prevent escape. A pair of African flamingos which had not yet had their wings clipped escaped from the Wichita, Kansas, zoo in 2005. One was spotted in Texas 14 years later. It had been seen previously by birders in Texas, Wisconsin and Louisiana. Fugitive flamingo spotted in Texas 14 years after escaping a Kansas zoo during storm, Wichita Eagle, Kaitlyn Alanis, May 27, 2019. Retrieved May 29, 2019.
Young flamingos hatch with grayish-red plumage, but adults range from light pink to bright red due to aqueous bacteria and beta-carotene obtained from their food supply. A well-fed, healthy flamingo is more vibrantly colored, thus a more desirable mate; a white or pale flamingo, however, is usually unhealthy or malnourished. Captive flamingos are a notable exception; even if adequately nourished, they may turn a pale pink if they are not fed carotene at levels comparable to the wild.
The greater flamingo is the tallest of the six different species of flamingos, standing at with a weight up to , and the shortest flamingo species (the
Flamingos can open their bills by raising the upper jaw as well as by dropping the lower., page 409.
The pink or reddish color of flamingos comes from carotenoids in their diet of animal and plant plankton. American flamingos are a brighter red color because of the beta carotene availability in their food while the lesser flamingos are a paler pink due to ingesting a smaller amount of this pigment. These carotenoids are broken down into pigments by liver enzymes. The source of this varies by species, and affects the color saturation. Flamingos whose sole diet is blue-green algae are darker than those that get it second-hand by eating animals that have digested blue-green algae.
Though flamingos prefer to drink freshwater, they are equipped with glands under their eyes that remove extra salt from their bodies. This organ allows them to drink saltwater as well.
Flamingos form strong , although in larger colonies, flamingos sometimes change mates, presumably because more mates are available to choose. Flamingo pairs establish and defend nesting territories. They locate a suitable spot on the mudflat to build a nest (the female usually selects the place). Copulation usually occurs during nest building, which is sometimes interrupted by another flamingo pair trying to commandeer the nesting site for their use. Flamingos aggressively defend their nesting sites. Both the male and the female contribute to building the nest, and to protecting the nest and egg.
After the chicks hatch, the only parental expense is feeding. Both the male and the female feed their chicks with a kind of crop milk, produced in glands lining the whole of the upper digestive tract (not just the crop). The hormone prolactin stimulates production. Crop milk contains both fat and protein, as with mammalian milk, but unlike mammalian milk, it contains no carbohydrates. (Columbidae also produce crop milk, though just in the glands lining the crop, which contains less fat and more protein than flamingo crop milk.)
For the first six days after the chicks hatch, the adults and chicks stay in the nesting sites. At around 7–12 days old, the chicks begin to move out of their nests and explore their surroundings. When they are two weeks old, the chicks congregate in groups, called "microcrèches", and their parents leave them alone. After a while, the microcrèches merge into "crèches" containing thousands of chicks. Chicks that do not stay in their crèches are vulnerable to predators. When young flamingos are around three to three and a half months old, their flight feathers will finish growing in, allowing them to fly.
Greater, a greater flamingo who was at least 83 years old and believed to be the oldest in the world, died at the Adelaide Zoo in Australia in January 2014.
Zoos have used mirrors to encourage flamingos to breed. The mirrors are thought to give the flamingos the impression that they are in a larger flock than they actually are.
Although a few recipes for flamingos are found in Apicius' extant works, none refer specifically to flamingo tongues. The three flamingo recipes in the De re coquinaria ( On the Subject of Cooking) involve the whole creature:
Suetonius mentions flamingo tongues in his Life of Vitellius:
Martial, the poet, devoted an ironic epigram, alluding to flamingo tongues:
There is also a mention of flamingo brains in a later, highly contentious source, detailing, in the life of Elagabalus, a food item not apparently to his liking as much as camels' heels and parrot tongues, in the belief that the latter was a prophylactic:
Phylogeny
The cladogram below showing the phylogenetic relationships between the six extant flamingo species is based on a study by Roberto Frias-Soler and collaborators that was published in 2022.
Species
Six extant flamingo species are recognized by most sources, and were formerly placed in one genus (have common characteristics) – Phoenicopterus. As a result of a 2014 publication, the family was reclassified into two genera.Gill, F and D Donsker (Eds). (2016). IOC World Bird List (v 6.3). In 2020, the family had three recognized genera, according to HBW.
Description
Flamingos usually stand on one leg with the other tucked beneath the body. The reason for this behaviour is not fully understood. One theory is that standing on one leg allows the birds to conserve more body heat, given that they spend a significant amount of time wading in cold water. However, the behaviour also takes place in warm water and is also observed in birds that do not typically stand in water. An alternative theory is that standing on one leg reduces the energy expenditure for producing muscular effort to stand and balance on one leg. A study on cadavers showed that the one-legged pose could be held without any muscle activity, while living flamingos demonstrate substantially less body sway in a one-legged posture.
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Behavior and ecology
Feeding
Flamingos are omnivores who Filter feeder on brine shrimp, cyanobacteria, Larva, Insect, Mollusca and Crustacean. Their bills are adapted to separate mud and silt from the food they eat and are uniquely used upside-down. The filtering of food is assisted by hairy structures called lamellae, which line the mandible, and their large, rough tongue. By rapidly retracting their head, flamingos generate vortexes that stir up sediment and shrimp. Flamingos further induce directional flows by chattering their beaks, while their stomping creates eddies to trap invertebrates.
Vocalization sounds
Flamingos are considered very noisy birds with their noises and vocalizations ranging from grunting or growling to nasal honking. Vocalizations play an important role in parent-chick recognition, ritualized displays, and keeping large flocks together. Variations in vocalizations exist in the voices of different species of flamingos.
Life cycle
Flamingos are very social birds; they live in colonies whose population can number in the thousands. These large colonies are believed to serve three purposes for the flamingos: avoiding predators, maximizing food intake, and using scarce suitable nesting sites more efficiently. Before breeding, flamingo colonies split into breeding groups of about 15 to 50 birds. Both males and females in these groups perform synchronized ritual displays.Ogilvie, Malcolm; Carol Ogilvie (1986). Flamingos. Gloucester, UK: Alan Sutton Publishing Limited. . . The members of a group stand together and display to each other by stretching their necks upwards, then uttering calls while head-flagging, and then flapping their wings.Studer-Thiersch, A. (1975). "Basle Zoo", pp. 121–130 in N. Duplaix-Hall and J. Kear, editors. Flamingos. Berkhamsted, United Kingdom: T. & A. D. Poyser, . The displays do not seem directed towards an individual, but occur randomly. These displays stimulate "synchronous nesting" (see below) and help pair up those birds that do not already have mates.
(1975). 9781408138663, T & AD Poyser Ltd.. ISBN 9781408138663 Same-sex pairs have been reported.
Status and conservation
In captivity
The first flamingo hatched in a European zoo was a Chilean flamingo at Zoo Basel in Switzerland in 1958. Since then, over 389 flamingos have grown up in Basel and been distributed to other zoos around the globe.
Relationship with humans
Ancient Roman cuisine
While many different kinds of birds were valued items in Roman food, flamingos were among the most prized in Ancient Roman cuisine. An early reference to their consumption, and especially of their tongues, is found in Pliny the Elder, who states in the Natural History:
Other
(1997). 9780500018026, Thames and Hudson. ISBN 9780500018026
Notes
External links
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