In addition to Galapagos, the brown pelican is found along the western coasts of northen South America, Central America, and North America, and throughout the Caribbean. The Galapagos population of brown pelican is considered to be an endemic subspecies. Adult pelicans can be distinguished from juveniles by their plumage. Juveniles tend to have gray face, skin, bill, and legs, with a brown body.
Adults have a white neck, gray-brown upper body and brown to black lower body.
The neck is white, often with a yellowish crown. In breeding season, the back of the neck is a rich chestnut brown. The individual in the picture above is an adult in non-breeding plumage. Female pelicans lay two to three eggs and both parents share in incubation and feeding. Of all the pelecaniformes, the pelican has the largest gular sac, from which the juveniles feed.