A young hoatzin knows how to get away fast. The hoatzin [WHAT - seen] is a bird of tropical South America. It builds its nest directly over streams and other bodies of water. When a hoatzin chick is threatened in its nest by another animal, such as a monkey, it dives into the water and swims away. It often makes its escape by swimming underwater. To get back home, the chick uses something that few other birds have : wing claws. Digging in with the two claws it has on each wing – along with its bill and its feet – the chick climbs a tree. It usually doesn’t return to its nest, but finds a perch nearby. Its parents will visit it there and feed it. When the hoatzin chick is about 10-15 weeks old, it begins to learn to fly. Once the chick flies, it loses its wing claws.