The cochoas (from cocho, Nepali for Cochoa purpurea) are medium-sized frugivorous, insectivorous and molluscivorous birds in the genus Cochoa. 
previously included in the Old World flycatcher family Muscicapidae.

1/ Purple cochoa (Cochoa purpurea)
Cô cô đầu xám

2/ Green cochoa (Cochoa viridis)
Cô cô xanh