Probably the most common bird in the marshes, from the US to South America.
These birds have the most annoying habit of hiding until you are almost right on top of them, then running across the top of the water… screaming !!! Scares you half to death and lets every other animal know exactly where you are.
Gallinules don’t have web feet, they have huge flat toes toes for easy walking in mud, and running quickly over the top of swamp vegetation. When flapping their wings it’s about the same thing as walking on water… while screaming.