Comments: Brown pelicans inhabitat mainly coastal waters and rarely are seen inland or far out at sea. They feed mostly in shallow estuarine waters, less often up to 40 miles from shore. They make extensive use of sand spits, offshore sand bars, and islets for nocturnal roosting and daily loafing, especially nonbreeders and during the non-nesting season. Dry roosting sites are essential.
Nesting occurs usually on coastal islands, on the ground or in small bushes and trees (Palmer 1962), including the middle or upper parts of steep rocky slopes of small islands in California and Baja California and low-lying islands landward of barrier islands or reefs on the Atlantic and Gulf coasts, where nests often are in mangroves, sometimes in Australian "pines," red-cedars, live oaks, redbays, or sea grapes. In the subtropics and tropics, mangrove vegetation constitutes an important roosting and nesting substrate (Collazo and Klaas 1985, Schreiber 1979, Schreiber and Schreiber 1982). Brown pelican may shift among different breeding sites, apparently in response to changing food supply distribution (Anderson and Gress 1983) and/or to erosion/flooding of nesting sites.
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