These famous pink birds can be found in warm, watery regions on many continents. They favor environments like estuaries and saline or alkaline lakes. Considering their appearance, flamingos are surprisingly fluid swimmers, but really thrive on the extensive mud flats where they breed and feed.
Greater flamingos are likely to be the only tall, pink bird in any given locale. They also have long, lean, curved necks and black-tipped bills with a distinctive downward bend.
Their bent bills allow them to feed on small organisms—plankton, tiny fish, fly larvae, and the like. In muddy flats or shallow water, they use their long legs and webbed feet to stir up the bottom. They then bury their bills, or even their entire heads, and suck up both mud and water to access the tasty morsels within. A flamingo’s beak has a filter like structure to remove food from the water before the liquid is expelled.
Shrimplike crustaceans are responsible for the flamingo’s pink color. The birds pale in captivity unless their diet is supplemented.
Greater flamingos live and feed in groups called flocks or colonies. They find safety in numbers, which helps to protect individual birds from predators while their heads are down in the mud. Greater flamingos also breed while gathered in groups. Once mating is complete, a pair takes turns incubating their single egg. Young flamingos are born gray and white and do not turn pink for two years. In years when wetlands and pools are dry and food scarce, flamingoes may not breed.
Retrieved from: https://www.nationalgeographic.com/animals/birds/g/greater-flamingo/
Flamingos rest with their feet tucked beneath their body, however a most common view is that of a flamingo standing on one leg. In the latter position, they are a magnificent view as they are seen swaying back and forth in the wind. With their webbed feet, they are able to wade in muddy waters in search of food; on the other hand, in much deeper waters where they cannot wade, they can be seen floating on the surface of the water and moving in the direction of the wind.
Young flamingos hatch with greyish reddish 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 coloured and thus a more desirable mate; a white or pale flamingo, however, is usually unhealthy or malnourished. Captive flamingos are a notable exception; many turn a pale pink as they are not fed carotene at levels comparable to the wild.
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 between about 15 and 50 birds. Both males and females in these groups perform synchronized ritual displays. 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. The displays do not seem to be directed towards an individual but instead occur randomly. These displays stimulate “synchronous nesting” (see below) and help pair up those birds who do not already have mates.