Twelve flamingo facts, fact-checked
Flamingos are wading birds built entirely around filter feeding in water most animals cannot tolerate. Full profile in our flamingo guide.
1. They are born grey
Chicks hatch grey or white and take one to three years to reach full colour.
2. Pink comes from diet
Carotenoids in algae and brine shrimp are metabolised and deposited in feathers. A flamingo without them fades.
3. They feed upside down
The head is inverted so the bill can filter, and the upper mandible — not the lower — moves.
4. Both parents produce crop milk
A red, protein- and fat-rich secretion fed to chicks. Producing it can temporarily drain the parents' own colour.
5. They live in extreme water
Highly alkaline or saline lakes, caustic enough to burn skin, which excludes competitors and predators.
6. Standing on one leg conserves heat
Evidence supports thermoregulation, and the posture requires no muscular effort — a flamingo can hold it while asleep.
7. Colonies number in the hundreds of thousands
Breeding is highly synchronised, so chicks hatch together.
8. Chicks form crèches
Thousands of chicks gather under a few adults; parents find their own by call.
9. They build mud-mound nests
Raised cones that keep the single egg above heat and rising water.
10. Group displays precede breeding
Synchronised head-flagging and wing salutes run through the colony, bringing birds into breeding condition together.
11. Six species, varying status
Most are Least Concern; the Andean flamingo is Vulnerable.
12. Their lakes are the vulnerability
Dependence on a few specific alkaline lakes means water extraction, mining and disturbance at one site can affect a large share of a population.
Read the full flamingo wildlife guide for IUCN status, population context and sources — or donate to WARN to help fund the partner teams protecting wildlife on the ground.
