Any of the large primary or secondary feathers in a bird’s wing, supporting it in flight. Also called remex.
- Even though there is a basic similarity with a flight feather, the peacock tail feather has an unusual barbule structure.
- In addition, a small clipping was taken from a secondary flight feather for stable-hydrogen isotope analysis.
- This is not a simple question because the primitive stage in feather evolution could have been most similar to a flight feather, or to a down feather, or to a contour feather with or without an aftershaft.
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