The hook on the upper mandible can dig out fleshes from the fruit, while the base of the lower mandible can work like nutcrackers to crash the stones and get the seed.

• 它们的喙像多功能的工具一般，前方呈钩状，吃水果时能利用它挖出果肉，喙基部则像钳子似的，可夹碎坚硬的种子，顺利的吃到鲜美的种仁。