At about 4 inches, the mejiro, or Japanese white-eye, is very common in Hawaiʻi. A fast-moving green bird, their white eye rings makes them stand out. They are omnivorous and feed mostly on insects and nectar. Mejiro were first introduced to Hawai’I in 1929 to help control insect pests but they are now the most abundant land bird in Hawaiʻi and may even compete with native birds for food.