Here's a PARTIAL list of 26 bird species, 8 rodent species, 5 marsupial species, 4 lizard species and 1 lagomorph (rabbit/coney/pika) species rendered extinct by feral cats.  Four of them (indicated by *) were extirpated EXCLUSIVELY by feral cats:

Aukland Islands Merganser (NZ); Bunker's Wood Rat* (Mexico); Bonin Grosbeak (Japan); Aldabra Brush Warbler (Seychelles); Black-Fronted Parakeet (Tahiti); Canary Is. Oystercatcher (Spain); Stead's Bushwren (NZ); Chatham Rail (NZ); Choisul Pigeon (Sol. Isl.); Bonin Wood Pigeon (Japan); Darling Downs Hopping Mouse (AU); Cape Verde Giant Skink (Cabo Verde Is.); Gould's Mouse (AU); Eastern Hare-Wallaby (AU); Desert Rat-Kangaroo (AU); Hawaiian Rail (US); Jamaican Wood Rail (Jamaica); Laughing Owl (NZ); Lake Mackay Hare-Wallaby (AU); Lesser Bilby (AU); Macquarie Parakeet (AU); NZ Quail (NZ); Norfolk Pigeon (AU); N. Is. PioPio (NZ); Paradise Parrot (AU); Pig-footed Bandicoot (AU); Reunion Is. Pink Pigeon & Rodrigues Is. Giant Day Gecko (Madagascar)