Brown pelican (Pelecanus occidentalis)

Description and identification

Adults have a predominantly brownish body with a paler head; plumage can vary seasonally during breeding. The large bill and throat pouch are used to scoop fish and drain water before swallowing. In flight they show broad wings and a characteristic low, steady glide close to the water. Juveniles are generally darker and lack the bright head markings of adults.

Distribution and habitat

Brown pelicans occur along coastal waters and nearby inland bays. Their range includes the coasts of the Atlantic, the Pacific and the Gulf of Mexico, spanning parts of North and South America. They favor estuaries, lagoons and open shoreline where fish are abundant, and are often seen near piers and fishing boats.

Diet and feeding behavior

Brown pelicans are diurnal carnivores that feed mainly on small schooling fish. They hunt by sight, plunging from the air into the water to capture prey in the pouch, then draining and swallowing it. Their diet also includes other small aquatic animals such as fish, amphibians and crustaceans. Feeding techniques may vary regionally and with prey availability.

Conservation, history and human interactions

Brown pelicans underwent serious declines in the mid-20th century due to pesticide contamination, oil spills and habitat loss. Protection measures and reductions in pesticides allowed many populations to rebound; in some countries the species' legal conservation status has been relaxed following recovery. Ongoing threats include pollution, disturbance at nesting sites, entanglement in fishing gear, and coastal development.

Notable facts and distinctions

• Unlike some other pelicans that feed by cooperative surface scooping, brown pelicans typically catch prey by individual plunge-diving.
• They form large breeding colonies and may nest in trees, on cliffs or on ground sites depending on local habitat.
• As a visible coastal species, brown pelicans are important indicators of nearshore ecosystem health and are often subjects of wildlife tourism and study.