Reproduction: Maturity takes place at three to four years. Pelicans breed in large colonies numbering 50 to 10,000 or more. The nest is built on the ground lined with sticks or vegetation or it may be a loose platform of sticks and reeds in low trees, bushes or mangroves. The nesting season of grey pelican begins in November-April. The number of eggs laid by the female varies from one to four. Eggs are chalky white in colour. The incubation is done by both sexes and the young hatch after an incubation period of 28 to 35 days. The young are naked, blind, ugly and helpless. They are fed by both parents through regurgitation. Young grow rapidly and are able to fly at about 60 days.
Behaviour: Pelicans usually travel in small flocks.
Life span: Pelicans have been known to live 30 years or more.