Which rhino, hippo, kingfisher is an endangered species?

Rhino is an endangered species.

Rhinos are the largest odd-dactyl animals in the world. They mainly live in lowlands or highlands above 2,000 meters above sea level. Rhinos are mainly active at night. They live alone and in groups when they are active. Rhinos mainly live on grass, leaves, twigs, wild fruits and other food. Because rhino horns can be used for decoration and have great medicinal value, they are hunted in large numbers and face the dilemma of being endangered. Rhinoceros are mainly found in the Sahara in the Southern Hemisphere, southern Asia, East Asia and Africa. They have thick bodies, short limbs, huge heads, thick skin, and a pair of horns on their mouths; they are mainly found in vast grasslands and some shrubs and swamps.