Medium-sized bird; heard far more than seen. All-white male is unmistakable; mostly green female is best identified by chunky proportions and long, sloping head profile. Found in tall forest, principally at higher elevations; common in the tepui region. Feeds at fruiting trees but is more often seen from high vantage points or flying across gaps. Males sing from bare snags above the canopy and are often not visible from below. Song is only vaguely bell-like, amazingly loud and reverberating; younger males may give a cracked or truncated version.