Palila - The palila has a yellow head and breast, with white to light gray plumage ventrally, medium gray plumage dorsally, and olive-green wings and tail. The wings and the tails are greenish. The bird also has a heavy dark bill with swollen sides, a brown iris, and dark feet with yellowish soles. The palila is one of the largest living Hawaiian honeycreepers, measuring around 6–7.5 inches .