The series of flight feathers (remiges) arising from, and attached to the ulna. The inner secondaries are also called tertials<ref name="Kenya">Zimmerman, Dale A.; et al. (1999). Birds of Kenya and Northern Tanzania. Princeton University Press. p. 432. ISBN0691010226.</noinclude>.
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This article is part of Project Glossary, an All Birds project that aims to write comprehensive articles on each term related to animals.