Romulan Bird of Prey
The Bird of Prey was a variety of Romulan starship in use during the 2260s (not to be confused with the Klingon platform also known as the Bird of Prey). Ships of this class were built as a saucer-shaped primary hull with two nacelles attached by forward-angled pylons. The most distinctive feature, however, was a red and white bird in flight painted onto the bottom of the hull. According to background lore, the original script for the episode "Balance of Terror" called for the Romulans to have a ship that was a copy of the USS Enterprise, which the Romulans had built using Federation technology that they obtained through espionage. However, the producers ultimately decided to have the Romulan ship only vaguely resemble the Enterprise, as evidenced by the saucer-like hull and pylon-mounted cylindrical nacelles.