In my search to find my neighbor's missing bird and to find the owner of a bird that was found, I became friends with someone who is also missing her bird..
She and I have created a Facebook page for people who lost their bird and/or who have found a bird.
"Lost and Found Cockatiels and Other Bird Companions"
https://www.facebook.com/groups/940757099288452/
If you join because of my ad, please let me know..