Possible Clues:

• Carla's portrayer on ''Cheers''
• With her, a bird cannot take off in South America
• Mother of Zeus; a flightless bird
• Cousin of the emu
• Co-star of Ted, Woody and Kelsey
• Mother of 67-Across
• Small 'ostrich'
• TV's Perlman
• You may hear it, but you won't see it fly
• Goddess whose children were swallowed by Cronus