The American coot is a black or dark gray ducklike member of the rail family. Adults have a black head and neck, an ivory-white bill with a black ring near the end, and yellowish green legs with lobed feet. The outside of the under tail feathers is white. Song is a series of chickenlike notes and grating and crying sounds, louder and less nasal than common gallinule.
Similar species: The common gallinule (until recently considered the common moorhen) is a rare migrant and locally rare summer resident usually in big river floodplains. The adult resembles a coot but has a red, yellow-tipped bill and a red facial shield. The call is similar to the chickenlike clucking and whinnying of the American coot but higher and more nasal.
Length: 16 inches (tip of bill to tip of tail).
Habitat and Conservation
Look for American coots on lakes, marshes, ponds, rivers, and swamps. Coots occur in wetlands, preferring marshes dominated by robust emergent vegetation interspersed with water. They require stable water levels during nesting season.
American coots are omnivorous, feeding on a large variety of aquatic and terrestrial vegetation and foraging for a variety of invertebrates and other small animals.
Common migrant. Rare summer resident in marshes with nesting numbers fluctuating greatly between high- and low-precipitation years. Rare winter resident, with most birds reported in southern Missouri.
Coots weave vegetation into shallow nests that float on water, attached to upright plant stalks. A clutch usually contains 8-12 eggs, which are incubated for 23-25 days. The young are covered with down and are able to leave the nest within hours of hatching. American coots can live for more than 20 years.
Coots are sometimes hunted for sport, but they are usually not considered good eating. In their wetland habitats, their bodies absorb environmental pollutants, and researchers use them as a way of gauging the amount and types of pollutants in the environment.
Don’t underestimate the impact of grazers. Though they seem to only nibble, a group of them steadily nipping at plants can eat a staggering amount of vegetation over time.