Because flamingos require certain foods in their diet, such as algae, to be the color that they are, it may be that youngsters can't get enough of the carotenoids that causes them to become pink.
Even then, they might need to be fully feathered to be another color, for their own safety. This chick is white, but most flamingo chicks that I've seen are gray.
Also, there is more than one variety, and I've never studied them all. Nor do I know what variety this chick is.
Some types of flamingos are pink, others nearly orange, and some quite pale...almost white. It depends on the concentration of chemicals in their diet - how much algae, and so forth.
The paler ones tend to have a diet of more animals that have already digested the algae. Second-hand algae doesn't impart nearly the same amount of color enhancing chemicals.
If you see a pale flamingo in a flock of pinker ones, though, it may mean that it's sick, or not getting enough food.
Well, we've just tapped out my knowledge of flamingos!
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