American White Pelican

The American White Pelican (Pelecanus erythrorhynchos) is a large aquatic soaring bird from the order Pelecaniformes. It breeds in North America, moving south and to the coasts, as far as Central America and South America, in winter. 
Description
The plumage is almost entirely bright white, except the black primary and secondary remiges, which are hardly visible except in flight. From early spring until after breeding has finished in mid-late summer, the breast feathers have a yellowish hue. After moulting into the eclipse plumage, the upper head often has a grey hue, as blackish feathers grow between the small wispy white crest.
The bill is huge and flat on the top, with a large throat sac below, and, in the breeding season, is vivid orange in color as is the iris, the bare skin around the eye, and the feet.
Food And Feeding
Unlike the brown pelican the American white pelican does not dive for its food. Instead it catches its prey while swimming. Each bird eats more than 4 pounds of food a day, mostly fish such as Cypriniformes like Common carp, Lahontan Tui chub, and shiners, Perciformes like Sacramento perch, or Yellow perch , Salmoniformes like rainbow trout, Siluriformes, and jackfish. Other animals eaten by these birds are crayfish and amphibians, and sometimes larval salamanders. Birds nesting on lakes, where food is scarce, will travel great distances to better feeding grounds.
American white pelicans like to come together in groups of a dozen or more birds to feed, as they can thus cooperate and corral fish to one another. When this is not easily possible – for example in deep water, where fish can escape by diving out of reach – they prefer to forage alone. But the birds also steal food from other birds, a practice known as kleptoparasitism. White pelicans are known to steal fish from other pelicans, gulls and cormorants from the surface of the water and, in one case, from a great blue heron while both large birds were in flight
Predation
Occasionally, these pelicans may nest in colonies on isolated islands, which is believed to significantly reduce the likelihood of mammalian predation. Red foxes and coyotes predate colonies if that they can access, and Several gulls have been known to predate pelican eggs and nestlings (including herring, ring-billed and California gull), as well as common ravens. Young pelicans may be hunted by great horned owls, red-tailed hawks, bald eagles, and golden eagles. the pelicans may temporarily abandon their nests if a human closely approaches the colony. If the threat is another bird, however, the pelicans do not abandon the nest and may fight off the interloper by jabbing at them with their bills. Full-grown pelicans have few predators. Only Red foxes and coyotes are known to prey on nesting adults on rare occasions.