Däumlingssperber Microspizias superciliosus

Well-named, this is truly a small hawk, although size can be difficult to judge. Look for fine barring on the underparts, darker cap, and relatively short tail. Adults are gray, juveniles warmer rufous. Lacks a conspicuous collar wrapping around the neck, as in Semicollared Hawk. Not frequently seen; often stays inside forests, where it hunts small birds. Sometimes perches at the forest edge. Almost always seen singly.