| The
beautiful adult Brown Pelican can reach a weight of 9 pounds and
achieve a wing span up to 7 feet. It is widely believed that the
yellow crown appears several months before breeding season and
molts after nesting begins. Under optimum conditions their life
span can reach 30 years.
The population
along the Mississippi coast as well as other east and west coast
areas were almost decimated in the 1960s by pesticides such as
DDT. Ingestion of pesticide residues in the fish they ate
affected the reproductive processes. Thin-shelled eggs that were
easily crushed and other impairments of the reproductive system
resulted in reducing their numbers to the point where they were
placed on the endangered species list in 1972. Along the Pacific
coast the species has been plagued by Avian Botulism. In 1996 it
was estimated that over 11,000 died from eating the fish that
carried the botulism. Human disturbances in nesting areas,
commercial fishing, pesticides and pollution are just a few of the
factors that threaten the species today. Their fight to survive
continues. |