Romulan bird-of-prey

From: Star Trek: The Original Series

Caption: Romulan bird-of-prey

Star Trek: The Original Series

Episode: TOS 009 - Balance of Terror

Romulan warship of the 23rd century used to test Federation fighting tactics and technology during the 2266 Romulan incursion. It could not use shields or weapons whenever cloaked. Its underside revealed its namesake: a huge, wingswept predatory bird design.