 As the bird became extinct before significant field observations could be made, not much is known about its behavior.The Lānai hookbill is only known to have eaten the fruit of the ōpuhe; however, it is unlikely that its unique bill would have developed to eat fruit, and it may have been a snail specialist.The hookbill has not been seen since 1918, and by 1940 nearly all of Lānai's forests were converted into pineapple fields, destroying the bird's habitat.