When I had a toe-picker once, I kept twapping it with my finger when it did that. I'd stand there for 15-20 minutes and it would stop while I was there, but when my back was turned, it started up again. I just kept at it, and eventually it stopped.This little one only does the pecking when I wake them up in the morning. It does it to the poor little one several times until I take the little one being pecked out for a little bit.