Sandhill crane
The sandhill crane is a species of large crane of North America and extreme northeastern Siberia. Cranes are opportunistic fliers, relying on thermals and tail winds to carry them along. Cranes ride thermals so efficiently that they have been seen flying over Mt. Everest (~28,000 feet). Their bills and feet are important tools. A crane's bill is very sharp and sturdy, useful when probing frozen soil. The edges are serrated to grasp slippery food like worms and snakes. Not only is it used for preening, it is also used as a weapon.
