I think he knew a few colors & yes, over & over. He's a bird that really understands good, bad, yes & no. That makes training much easier. Yes, on the curtain... Its a before bed item, not always immediately to bed, but most of the time. I don't train in the morning like is recommended. We tried but he was usually to excited to have the sheets or towels off the cage to be w/ us. It turned into sometimes in the afternoon, but a little something happens dinner time or immediately following. He's a much more focused fid!