Crobat

Both of its legs have turned into wings. Without a sound, Crobat flies swiftly toward its prey and sinks its fangs into the nape of its target’s neck.

If this POKéMON is flying by fluttering only a pair of wings on either the forelegs or hind legs, it’s proof that CROBAT has been flying a long distance. It switches the wings it uses if it is tired.