Flamingos display pink plumage because their diet includes many small crustaceans the shells of which are laden with pink pigmentation and other chemicals which in turn manifest in the flamingo's feathers. Flamingos feed in wetlands and lake beds, stirring up mud and silt with their feet and then sweeping their beaks through the agitated soil to sieve out their prey.Continue Reading
Flamingos in captivity will often lose their coloration. Dietary supplements can be used to restore their brilliant color, but without it their plumage will fade until it is a kind of off-white or rose and cream color that is also sometimes seen in wild flamingos feeding from atypical sources.
Flamingos are not born pink and do not acquire their vivid pink coloration until at least 2 years of age. Hatchlings are grey or white with a thick layer of downy feathers covering their bodies, and they remain this way until they molt and fledge upon maturation.
Flamingos take in a huge amount of muck and dirt as they filter through the waters where they feed. To avoid swallowing this detritus, their beaks are equipped with a filter-like mechanism which allows them to catch food while water and refuse sluice out.Learn more about Waterfowl
While the specific diet of a freshwater fish depends on its species, most eat smaller fish, leeches, worms, insects, crustaceans, plankton and krill. When kept in an aquarium, freshwater fish can thrive on a combination of fortified flake food, pellets, sticks and wafers.Full Answer >
According to About.com, penguins are carnivores with piscivorous diets, and their diet consists mainly of fish, crustaceans and cephalopods. Penguins are opportunistic feeders, and their diet is largely based on what is available seasonally and in a particular location.Full Answer >
The diet of a bony fish includes plankton, crustaceans, invertebrates and other fish, depending on the species. There are over 28,000 species of bony fish.Full Answer >
The diet of an arctic cod varies greatly as it grows, and at different times includes different components of plankton (mainly small crustaceans such as copepods, amphipods, euphausiids and arrow worms), shrimp and other arctic cod. Arctic cod are unlike other cod because they feed not at the bottom of the ocean but instead in the upper layers of the ocean.Full Answer >