Related Clues:

• Pet that can be polydactyl
• Pet that might be an avid birdwatcher
• Its smell scares a mouse
• One may be feral
• Witch’s familiar, often
• One may sit on your keyboard
• Pet in many a YouTube video
• Animal, partly domesticated
• Fiddler in the nursery tale
• Pet raised by Santa Claus inside
• Animal sitting behind a plate of salad, in a meme
• Creature that's almost purr-fect
• Catcher of many intruders at 10 Downing Street
• Popular adoptee
• Only domestic species in the family Felidae