I ♥️ Common Gallinules

I ♥️ Common Gallinules. Their chatter and cries are my favorite. 😀 So what’s up with that red facial shield?
“A frontal shield, also known as a facial shield or frontal plate, is a feature of the anatomy of several bird species. Located just above the upper mandible, and protruding along the forehead, it is composed of two main parts: a hard, proteinaceous callus and a soft, fleshy corium. It is thought to play roles in protection, mate identification, sexual selection, and territorial defense.”
source: Wikipedia

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