Young flamingos hatch with grey 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

Young flamingos hatch with grey 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