White Ibis

Eudocimus albus

Description:

The American White Ibis (Eudocimus albus) is a species of bird in the ibis family Threskiornithidae. It is found from the mid-Atlantic and Gulf Coast of the United States south through most of the New World tropics. This ibis is a medium-sized bird with an overall white plumage, bright red-orange down-curved bill and long legs, and black wing tips that are usually only visible in flight. Males are larger and have longer bills than females. The breeding range runs along the Gulf and Atlantic Coast, and the coasts of Mexico and Central America. Outside the breeding period, the range extends further inland in North America and also includes the Caribbean. It is also found along the northwestern South American coastline in Colombia and Venezuela. Populations in central Venezuela overlap and interbreed with the Scarlet Ibis. The two have been classified by some authorities as a single species. The diet consists primarily of small aquatic prey such as insects and small fishes. Crayfish are its preferred food in most regions; however, it can adjust its diet according to the habitat and prey abundance. It is a tactile non-visual forager, whose main foraging behavior is probing with its beak at the bottom of shallow water to feel for and to capture its prey. During the breeding season, the American White Ibis gathers in huge colonies near water. Pairs are predominantly monogamous and both parents care for the young, although males tend to engage in extra-pair copulation with other females to increase their reproductive success. Males have also been found to pirate food from unmated females and juveniles during the breeding season.

Habitat:

The American White Ibis is found in a variety of habitats, although shallow coastal marshes, wetlands and mangrove swamps are preferred. It is also commonly found in muddy pools, on mudflats and even wet lawns. Populations that are away from the coast and shoreline, particularly in southern Florida, often reside in other forms of wetlands such as marshes, ponds and flooded fields. In summer, these move to more coastal and estuarine habitats as inland waterways become flooded with summer rains and the ibis find the water levels too deep to forage effectively. The American White Ibis is most common in Florida, where over 30,000 have been counted in a single breeding colony. It also occurs throughout the Caribbean, on both coasts of Mexico (from Baja California southwards) and Central America, and as far south as Columbia and Venezuela. The non-breeding range extends further inland, reaching north to Virginia, and west to eastern Texas.