Andean coot

Fulica ardesiaca

The Andean coot , also known as the slate-coloured coot, is a species of bird in the family Rallidae. It is found in the Andes from far southwestern Colombia to northwestern Argentina. Its natural habitats are swamps and freshwater lakes.
Andean Coot, La Cocha, Colombia Within Colombia, only found in the far south between 2000m and 3500m. The colors on the bill and shield (red part) are highly variable, there's lots of combinations of red, yellow and white. Yellow variety adult (and young) found on the same lake:
https://www.jungledragon.com/image/76225/andean_coot_-_adult_feeding_youngster_la_cocha_colombia.html
It can be confused with the smaller American Coot. Main way to tell them apart is that the Andean Coot does not have a ring on the bill. Here's an example of an American Coot showing the ring:

https://www.jungledragon.com/image/44380/a_little_limbo.html Andean coot,Colombia,Colombia 2018,Colombia South,Fulica ardesiaca,La Cocha,South America

Appearance

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.

References:

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Status: Least concern
EX EW CR EN VU NT LC
Taxonomy
KingdomAnimalia
DivisionChordata
ClassAves
OrderGruiformes
FamilyRallidae
GenusFulica
SpeciesF. ardesiaca
Photographed in
Colombia