The Eared Grebe is a small diving waterbird that is thought to be the most abundant grebe species in the world. Eared Grebes are fringe members of the birdlife of the Neotropics, barely breeding in the region in the highlands of central Mexico. After breeding, however, many Eared Grebes migrate from US and Canada breeding sites into Mexico and as far south as Guatemala and occasionally El Salvador to spend the winter. Small and thin-necked, the species has a peaked head, dark face, and thin bill which separate it from the rather similar Horned Grebe. The species dives both in freshwater and saltwater bodies to catch aquatic prey, primarily invertebrates, by means of foot-propelled swimming.