Shimmerwing

From Tardis Wiki, the free Doctor Who reference

Shimmerwings were almost-transparent creatures unique to the planet Halcyon. Tamsin Drew compared them to hummingbirds and butterflies. The shimmerwings — along with all other Halcyon life — were wiped out when, as the Monk showed to Tamsin, the Ice Warriors attacked Halcyon to make it their new home. (AUDIO: The Resurrection of Mars)