The Montezuma OropendolaPsarocolius montezuma, is a New World tropical icterid bird. It is a resident breeder in the Caribbean coastal lowlands from southeastern Mexico to central Panama. The English and scientific names of this species commemorate the Aztec emperor Montctezuma II. Adult males are mainly chestnut with a blackish head and rump, and a tail which is bright yellow apart from two dark central feathers. There is a bare blue cheek patch and a pink wattle. The long bill is black at the base with a red tip. Females are similar, but smaller than males with a smaller wattle. The "unforgettable" song of the male Montezuma Oropendola is given during the bowing display, and consists of a conversational bubbling followed by loud gurgles, tic-tic-glik-glak-GLUUuuuuu. Both sexes have loud cack and crrrk calls.