Klingon Bird-of-Prey

The Klingon Bird-of-Prey was a type of spaceship used by the Klingons in the parallel universe of the United Federation of Planets. They were retained even after the Klingons had been converted by the Cybermen in an alternate timeline, appearing over the First City of Qo'noS. (COMIC: Assimilation²)

Behind the scenes

 * J. K. Woodward, who worked on the Star Trek crossover Assimilation², released a piece depicting the Doctor's TARDIS appearing in front of a Klingon Bird-of-Prey.