The Nachri are a civilization originating on a homeworld somewhere in the galaxy's Alpha or Beta Quadrants.
The Nachri were an avian-like species. (SCE eBook: Buying Time)
In the late 22nd century, before the Prime Directive, Starfleet backed a rebel movement that overthrew a militaristic Nachri regime. (SCE eBook: Buying Time)
In the year 2373, Quark had lined up Nachri insurgents as buyers of the Reletek's transphasic sensor array technology. (DS9 - Prophecy and Change short story: "... Loved I Not Honor More")