Although it was removed from the national list of threatened species in 1987, the American white pelican is still considered endangered in Alberta. The population here is increasing (from 548 nesting pairs in 1980 to over 1,000 today) but fewer than half of the 20 known historic nesting islands are still in use.
Risks to the Species
The most significant effect on white pelican populations in Alberta is disturbance of their breeding sites, by humans or industrial activity. The birds may abandon an entire nesting colony, leaving eggs and young chicks to be trampled or exposed to harsh weather and predators.
Changing water levels due to drought, irrigation and recreational use may also cause the birds to abandon a colony, at least temporarily.
Both sexes prominently display their bright orange bills during courtship rituals which include bowing, strutting and short flights. Egg-laying in a colony begins in mid-May. Both adults tend the large, chalky white eggs until they hatch about a month later.
Species Lifespan
In the wild the White Pelican can live up to 14 years old.
