Brown pelicans dive from the air for fish.
They also prey on pigfish, pinfish, herring, sheepshead, silversides, mullet, grass and top minnows, and they sometimes eat crustaceans, usually prawns. Once a pair forms a bond, overt communication between them is minimal. Pelican nesting peaks during March and April. They are exceptionally buoyant due to the internal air sacks beneath their skin and in their bones, and as graceful in the air as they are clumsy on land. In level their heads held back on their shoulders, the bills resting on their folded necks.