Peruvian Pelicans (Pelecanus thagus) - as adults, this species displays a white plumage stripe from the top of the bill up to the crown and down the sides of the neck - a pale (whitish gray) scapulars, and upperwings that contrast with a dark brown patch on the inner wing (humerals) - each feather on the underparts is streaked with pale, giving the body a pale streaked look - the head's crest is very long, and looks like a long tuft, and the neck stripe is blackish rather than brown - the facial skin is dark gray, with restricted pink around the eye - the bill base is brighter, more yellowish rather than dull horn - but most importantly, this species has a blue striped gular pouch (brighter in the breeding season).