The common iora (Aegithina tiphia) is sexually dimorphic – males in the breeding season have a black cap and back adding to a black wing and tail at all seasons. Females have greenish wings and an olive tail. The undersides of both are yellow. They are found in India to SW China, and Southeast Asia. The monogamous Common Iora has spectacular courtship displays – in the air the male fluffs its rump feathers then spirals down to its perch where it spreads its tail as a fan, and drops its wings.