American White Ibis

The American White Ibis (Eudocimus albus) is a medium-sized wading bird belonging to the family Threskiornithidae, immediately recognizable by its entirely white plumage contrasted with a vivid orange-red face, bill, and legs. Adults typically measure 56–71 cm in length with a wingspan of 91–107 cm, and weigh between 750 and 1,050 grams. The long, strongly decurved bill is the bird's most distinctive feature, perfectly adapted for probing soft substrates in search of prey.

This species inhabits coastal marshes, mangrove swamps, mudflats, flooded fields, and freshwater wetlands throughout its range, which extends from the southeastern United States south through Central America, the Caribbean, and into northern South America. In the United States it is most abundant in Florida, the Gulf Coast states, and the Carolinas. Populations show seasonal movements, with many birds moving inland during the non-breeding season.

The American White Ibis is highly gregarious, typically foraging and roosting in flocks that can number in the thousands. It feeds primarily on crayfish, which constitute the bulk of its diet, though it also takes crabs, small fish, frogs, snakes, and aquatic invertebrates. Foraging occurs by tactile feel, the sensitive bill tip detecting prey hidden beneath mud or shallow water. Birds often follow the retreating tide to exploit exposed mudflats.

Breeding colonies are large and often mixed with other wading birds such as herons, egrets, and roseate spoonbills. Nests are constructed from sticks in low shrubs, mangroves, or trees over water. Females typically lay two to five pale blue-green eggs blotched with brown. Both parents share incubation duties over approximately 21 days, and chicks fledge after roughly six weeks. The species is colonial and highly social throughout the year.

In flight, the American White Ibis shows black wingtips, a useful field mark distinguishing it from similar white birds such as egrets. It flies with its neck outstretched rather than retracted, a characteristic shared by all ibises. Juveniles are brown above and white below with a pinkish bill, gradually molting to adult plumage over two years. The conservation status of this species is Least Concern, with populations generally stable or increasing across much of its range.