An unmistakable large bird, with crimson red face, strong pale green bill, white underparts with black breast.  The long graduated tail has white edges and tip.  Dark upperparts has a green sheen.  Female’s iris is white while the male has it brown.  A rare forest bird, mainly inhabiting large rain forests at lower elevations of the wet zone.  One of the nucleus species of feeding waves in Sinharaja Forest.  Small colonies are found in some tall forest areas of the dry zone.  It usually lives in pairs and is a shy bird, preferring the dense canopy of tall trees.