What is the prominent fleshy yellow structure adorning the Wattled Jacana's head?

Answer

A large, fleshy, bright yellow wattle

The Wattled Jacana is instantly recognizable due to the large, fleshy, bright yellow wattle structure that extends from the base of its bill up onto its forehead. This striking feature is complemented by a corresponding yellow frontal shield. This physical characteristic, along with its dark plumage, makes it highly visible against its wetland background, though its large feet are the feature responsible for its famous nickname. The contrasting blackish-gray legs and feet are related to locomotion, not the head adornment itself.

What is the prominent fleshy yellow structure adorning the Wattled Jacana's head?
birdfactavianJacanawattle