Liu Xueqing saw an animal keeper dressed in blue coming over with a basket and dropping some greens and fruits on the ground. Several gray birds immediately ran over to peck at the food.
"The keeper must know."
So she asked, "Hello, could you tell me what kind of bird this is? Why don't they fly?"
The keeper warmly replied, "These are grey-winged trumpeters, found on the edge of tropical rainforests in South America!
They have much lower flying abilities than other bird species, but their running capability is very strong! Their thin legs can run quite fast, even faster than the average dog. They can actually fly if they really have to, vigorously flapping their wings to reach a height of about ten meters. If they can't get rid of predators pursuing them on the ground, they will fly up to the trees.