Flamingos are pink because of carotenoid pigments in their food, including algae and brine shrimp. The birds metabolize those pigments and deposit them in growing feathers and other tissues. A flamingo’s colour can vary with diet and species; it is not produced by pink feathers being naturally pink from birth.
From algae to feathers
Carotenoids are pigments found in many plants and algae. Small aquatic animals may obtain them by eating pigment-rich algae, and flamingos acquire them through feeding. The pigments are then processed and incorporated into feathers as they grow. Smithsonian’s National Zoo describes this dietary pathway as the source of flamingos’ distinctive pink colour. [1]
Why chicks look different
Flamingo chicks are covered in pale down, and their adult feathers develop later. As they feed and molt, pigments from their diet help colour new plumage. This is one reason a flamingo’s appearance can reflect its feeding ecology as well as its genetics. Captive diets are carefully formulated to maintain normal coloration and health.
Colour as a signal
In some birds, carotenoid colour can reveal aspects of diet or condition, although colour alone is not a simple health meter. Flamingo shades vary among individuals and species. The elegant pink is therefore a mix of chemistry, food webs and feather growth—not a permanent dye painted onto each feather. For another animal-colour story, explore how octopuses change colour quickly.
Are flamingos born pink?
No. Chicks are pale and develop their characteristic pink shades as they mature and grow feathers using pigments from food.
Sources and evidence
- Smithsonian National Zoo — Why Are Flamingos Pink? ↗
Dietary carotenoids from algae and brine shrimp supply flamingo coloration.
- Smithsonian National Zoo — American Flamingo ↗
Species information on the food-derived pink and red plumage.
Sources consulted: 11 October 2026. Written with AI assistance and checked against the linked references; not independently reviewed by a subject specialist. Sources do not endorse this article. See our editorial policy.
Revision: Initial publication; the explanation was checked against the linked institutional and research sources.