El Pollo Diablo was a legendary demonic chicken which rumoured that it destroyed chicken pens and set them loose upon the island. It was believed that it was waiting in the jungle to capture and kill the humans who ate its smaller kin.

A picture of the demon chicken could be seen in Blondebeard's Chicken Shoppe.

The Voodoo Lady described him this way:

"El Pollo Diablo, the Giant Demon Chicken! Tall as a man and twice as powerful, his massive drumsticks propel him through the dark jungle with ease. No one has seen the Beast, but on the eve of the full moon... ...his blood-curdling squawk can be heard from every corner of this wretched island. In the dark of night, he roosts patiently... watching... waiting... for the one day...He roams the island, exacting terrible vengeance on those who would capture and eat his smaller brethren."

She warned Guybrush Threepwood that there were:

"..others like you, skeptical to the true nature of the Beast... ...but they're all dead now, pecked into a bloody pulp by his savage beak."