Brown Pelican at Key Largo Florida (Pelecanus occidentalis)
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Brown Pelican at Key Largo perched on a coral knob. Pelecanus occidentalis Linnaeus. Although globally abundant, Brown Pelicans were once severely endangered in the United States. The major cause of their decline was pesticide poisoning. Since DDT was banned, there has been a full recovery on the east coast and other populations are showing steady improvement. Threats today include becoming snarled in abandoned fishing lines and flying into overhead wires.