Distal rhynchokinesis

VerneN
 

You might think a shorebird's beak is rigid, but part of it is not. They can flex the upper end of their beak like pincers to grab prey buried below in the mud and wet sand. It's called distal rhynchokinesis. I caught this Least Sandpiper flexing it above water while resting. 


http://bit.ly/2xtq7F7


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