Java Sparrows are large, full-bodied finches measuring over 5 ½ inches long. They were first introduced to Hawaiʻi in the 1960s on Oʻahu and they spread to the other main Hawaiian Islands quickly thereafter. They feed primarily on seeds and insects. Their head, chin, rear, and tail are black while their nack, wings, and chest are a bluish grey and the cheeks are white. The beak, legs, and eye ring are pink to red in color.