The Peruvian Booby (Sula variegata), is a seabird endemic to the Peruvian current. It is distributed only along the coast of South America from Punta PariÃ±as in Peru to ConcepciÃ³n in Chile. It is one of the most abundant species of seabird that inhabits the Peruvian Coast. By the mid twentieth century this species had an estimated population of 3 million individuals.
Peruvian Boobies breed throughout the year. Main breeding season occurs between September and March. They may breed a second time if food is abundant. Peruvian Boobies clutch size ranges from one to four pale blue eggs. Eggs are incubated for 4 to 5 weeks and both adults share the nesting duties. The young are reared for 3 months. Success in breeding depends on food availability, colony location, colony size and timing of breeding.
After El-NiÃ±o in 1982-83, it was estimated that only 200,000 species remained. In 1996, after a 13 year recovery, the population regained its number to 2.6 million birds. El-NiÃ±o 1997-98 came after the booby breeding season and caused a southward migration, decreasing its population in Peru.