Very large, but rather local coot; rare except at a few lakes in the high Andes set amid barren and rocky surroundings. Often far out on deep-water lakes, where it looks rather uneventful: black overall with a pale yellowish bill. Seen up close, note the bizarre, erectile black “horn” appendage covering the bill base. Juvenile is dark sooty gray with a whitish throat. Builds remarkable nest mounds of stones topped with weeds that look like the tips of huge underwater volcanoes and take months, if not years, to complete.
Sign in to see your stats
Weekly Bar Chart
Choose a region to view Weekly Bar Chart