She delivers eggs to your piñatas after they have done their romantic dance.
To get piñatas to do a romantic dance, you will have to meet the specific requirements for that species. (ex; a Sparrowmint has to have a house, and eat a Whirlm for romance)
Storkos lives in a egg house hanging from the mountain, she is a child of Jardinero, just like Seedos and Leafos.
Story Behind Her
Storkos was born at sea, and she was named after the storks which were following the ship the time she was born. She grew up on ships running around the decks pretending she had superpowers, naturally she solved the egg problem (eggs kept being smashed because the pinatas had to get their eggs from Egg Mountain themselves) by becoming Pinata Island's Super Hero! (Well that's what she thinks she is!)