A bear claw (usually a depiction of the bear's head is at the base of the claw on statues, idols, etc) is a symbol of strength and resiliance in Native American mythology.

Leprechauns are part of Irish mythology and have never featured in any native American culture. There is therefore no word for leprechaun in any native American language.

in Native American mythology the coyote is a creator and trickster and sometimes the source of death

a thunderbird came back from thousands of years ago from native American mythology.

The skin walker is part of native American mythology, and does not actually exist.