A woman in Southern California was surprised to find a flock of four rare geese in her backyard. A wildlife expert told KCAL that the birds the woman found in her yard are Nenes and are among the rarest geese in the world.

Part of the reason folks are surprised is because the Nene is a goose that is endemic to the Hawaiian islands and is Hawaii’s state bird. The small flock in question was found by a resident of Huntington Beach, California.