The 'elepaio is the friendly little flycatcher with the rubber ducky voice. They often come within a few feet of people to study them, as if trying to decide whether they might be infested with yummy bugs. They also perform entertaining acrobatic flights through the understory while chasing flying insects. They are usually the only small native bird seen on or near the ground. O'ahu and Kaua'i have their own species of 'elepaio, and on Hawai'i island there are three races of Hawai'i 'elepaio.