A gorgeously colored but highly elusive and uncommon bird found in extensive hill forests, particularly in areas with well-shaded ravines, gullies, and streams. Slow-moving and restricted to the canopy, where it blends in with the foliage. If seen, the green body is most obvious, followed by the black and silvery-blue bands on the wing. A better look would reveal a sky-blue head with a thin black eye-stripe and a pale blue tail. Listen for its song, a high, thin, even-sounding whistle, often given repeatedly but difficult to pin down.