Серая сибия Heterophasia gracilis

Gray overall with a brown cast to the back, a dark head, and black-and-silver panels on the wings. Underparts are pale, with the throat being the whitest. At a distance, may be confused with Black-capped Sibia, but lacks the all-dark wings of that species. As with most other sibias, often seen in flocks, sometimes with other species. Inhabits foothill forests, where it usually forages in the upper layers.