Variable Shrikethrush Colluricincla fortis

A chunky bird with a thick bill. Quite plain: brownish on the back, grayish on the head, and paler below, with indistinct breast streaking. Color of the underparts varies geographically from dull rufous to whitish-buff. Found at low and middle elevations in humid forest, including secondary forest. Rich, melodious, variable song consists of several penetrating whistles, generally in an up-and-down pattern. Calls include “chek” notes. Somewhat similar to Rusty Pitohui, but smaller, with a dark rather than pale eye. Also similar to Gray Shrikethrush, but smaller, shorter-tailed, and browner, with a darker face. Could be confused with female Black Shrikethrush, but always smaller and paler.