This well named grebe is the smallest grebe and is very small for a waterbird. Medium-gray overall with pale fluffy sides. The face is dark in breeding plumage; lighter with white throat in nonbreeding plumage. Piercing yellow eye; thin, sharp bill. Widespread throughout Central and South America; very limited range in U.S. Found in marshy ponds, often with extensive vegetation. Found singly or in pairs. Frequently dives underwater.