Also post on FaceBook (make sure the post is public) and call every vet's office within a hundred miles. Then send them flyers in the mail, or email them, depending on what they say. Many people who find a lot bird will take it to the vet, or call the vet saying they found this green bird. Same with pet stores, call and email/write. Think what you'd do if you found a parrot .. catch it right away, then try to locate the owner, right? Though some people don't do the latter ... check Craigslist but beware scammers, don't give out too much info. You know, school is in session ... might not be a bad idea to see if the local high schools will let you post something on the bulletin board or in a school publication - kids talk to kids and one of them might know something.
Can you stay near a window during the day so if Kizzy is near she will see you? I'm saying all these words because I feel so helpless. I hope she comes back soon. If you saw where she went, and can walk in that direction, you might come across someone or something helpful.