I couldn’t figure out what this bird was called from the online guides, but the guides seemed awfuly excited about it, so either it’s rare or it lays golden eggs.
Another view of the hoatzin from earlier. When they are chicks, they have claws on their wings so they can climb trees. There weren’t any of the young present when I was there though, so I have no proof of this.
According to Wikipedia, this bird is known as the hamerkop, hammerkop, hammerkopf, hammerhead, hammerhead stork, or anvilhead.
This means that almost everyone who looks at this guy thinks “wow he sure does look like a hammer”, but there was at least one natural historian out there who was entirely contrarian.
Flamingos are filter feeders, so it’s rare that you can see the bill both above and below the water. Usually, there’s far too much stuff clouding the water.