Do your birds have strange obsessions? Zappy has quite a few! He is obsessed with fabric. It doesn't matter what kind. He loves socks, towels, shirts, pants, sheets, even underwear! When I'm training him, he would rather have his reward be his favorite pair of socks than millet. He heart-wings constantly when fabric is present. He also serenades fabric. I can't tell you how many times I have walked into the room to see him singing Jingle Bells or the Indiana Jones theme to his favorite "Sock Buddy."