Rhynchokinesis definitions

Rhynchokinesis

The ability of the tip of the bill of many shorebirds to be very pliable as seen in this Short-billed Dowitcher.
Found on http://www.encyclo.co.uk/local/22214

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rhynchokinesis

The ability of some birds to independently move or open the upper tip of a long bill, most often seen in birds that feed by probing in soil or mud.
Found on https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter

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