Unusual and colorful rainforest bulbul. The upperparts are dark olive-green, and the underparts yellow washed with olive. There is a large patch of blue bare skin above the eye. Found in the forest understory, from low to moderate elevations. Often joins mixed flocks and follows ant swarms. The calls include chirpy notes, yelping “chow” notes, and a series of melancholy descending whistles that can either be given on the same pitch or in a descending pattern. Similar to other bristlebills, but separated by the red tail. Fairly similar to Red-tailed Greenbul and bearded-greenbuls, but separated by the blue bare skin above the eye, and further separated from all except Yellow-bearded Greenbul by the yellow rather than white throat.