Quill Feather Definition
CONTENT ANALYSIS (Composition)TESTING
NEW 2005 IDFB DEFINITION
Quill feathers are stiff wing and tail feathers which are over 12 cm in length or which have a quill point exceeding 10 mm in length.
2.2 Quill Feather) Stiff, course, wing and tail plumage. It has a longer and stiffer vane (2.11) than a feather (2.3.1).