What is "uniform crake"

n. a bird from the family Rallidae, ''Amaurolimnas concolor''.

The uniform crake (Amaurolimnas concolor) is a species of bird in the family Rallidae, the only member of the genus Amaurolimnas. It is found widely, but locally, in swampy forests and wetlands of southern Mexico, and Central and South America. A Jamaican subspecies, the Jamaican wood rail, is now extinct.

This relatively small, rufous bird is highly cryptic in its behavior and rarely seen.