It occurs in marshy wetlands and pools near the coast. It also occurs on mowed grass and has become common in some city parks. It builds a stick nest in trees, bushes, or over water, and 2 to 5 eggs are typically laid. White ibises are monogamous and colonial, usually nesting in mixed colonies with other wading species.

American White Ibis (Eudocimus albus) is a species of wading bird of the ibis family Threskiornithidae which occurs from the mid-Atlantic coast of the United States south through most of the New World tropics.