| Coot, Bird, Giant coot, Red‑fronted coot, Rallidae|
The Andean coot (Fulica ardesiaca), also known as the slate-coloured coot, is a species of bird in the family Rallidae. It is found in Argentina, Bolivia, Chile, Colombia, Ecuador, and Peru. Its natural habitats are swamps and freshwater lakes.
Andean coot Wikipedia
The bill and shield color are variable. The most common combination is a chestnut shield and yellow bill with a black spot on it. Other combinations are yellow shield / white bill and white shield / white bill.