Collared plover, White-sand forest, Inírida, Colombia

At a first glance, this may appear as a relatively poor shot of some common shore bird on a beach somewhere. You'd be right about the shot being poor, about it being a shore bird, but not about this being at a beach. Check the location, this is in the Colombian Amazon with no beach in sight for hundreds if not thousands of miles.

This ecosystem is rare, and called a white-sand forest:
https://en.wikipedia.org/wiki/Sand_forest

Even Wikipedia leaves many questions unanswered about this ecosystem.