Feak

To wipe the beak upon the perch, orig unkn.
Found on https://sites.google.com/site/breckfalconry/glossary

feak

lock of hair
Found on http://phrontistery.info/f.html

feak

The action of a raptor of wiping the beak against the perch or the glove after feeding.
Found on http://www.encyclo.co.uk/local/22209

Feak

The action of rubbing the beak against a surface to clean it; sign of content bird.
Found on http://www.themodernapprentice.com/glossary.htm

Feak

When the bird cleans his beak.
Found on http://www.americanfalconry.com/Glossary.html
No exact match found