Rangle

In falconry, rangle is a term used for small stones which are fed to hawks to aid in digestion. These stones, which are generally slightly larger than peas, are used less often now than they were historically. ...
Found on http://en.wikipedia.org/wiki/Rangle

Rangle

Small stones eaten by birds to aid digestion
Found on https://sites.google.com/site/breckfalconry/glossary

Rangle

• (v. i.) To range about in an irregular manner.
Found on http://thinkexist.com/dictionary/meaning/rangle/

Rangle

Ran'gle (răn'g'l) intransitive verb To range about in an irregular manner. [ Obsolete or Prov. Eng.] Halliwell.
Found on http://www.encyclo.co.uk/webster/R/10

Rangle

Small stones fed to the bird of prey to assist the crop
Found on http://www.encyclo.co.uk/local/22210

Rangle

Small, smooth stones ingested by a bird to help clean out her crop. Rangle both refers to the stones used and the action of feeding the stones.
Found on http://www.themodernapprentice.com/glossary.htm
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