Esmeraldas Antbird Sipia nigricauda

Shy antbird usually found in wet gullies, often near streams. Ranges in lowland and foothill rainforest in western Ecuador and western Colombia. Male is mostly dark, slaty gray; female also has brown back, wings, and lower underparts. Both sexes have red eyes and pale spots on wings that usually form parallel lines. Typically encountered alone or in pairs, and stays quite close to the ground. Song is a series of ringing chirps, each at slightly different pitch, and the last note is notably higher.