The Peruvian diving petrel (Pelecanoides garnotii) (local name in Peru: potoyunco), is a small seabird that feeds in offshore waters in the Humboldt Current off Peru and Chile. Like the rest of the diving petrels it is a nondescript bird, with a dark back and pale belly, and blue feet, and can be separated from the rest of its family only by differences in its beak and nostrils. Unlike the common diving petrel and the South...