Cuclillo Orejinegro Chrysococcyx osculans

Small plain cuckoo with a dark eye and black "ears." Inhabits dry woodlands, typically in arid regions. Usually solitary, shy, and most easily located when calling. Plain gray upperparts, pale underparts, with faint barring on undertail. Loud, piercing call descends in pitch, sounding somewhat sad, a repeated "fweeeew-fweeeeew-fweeeew."