I think the nippy phase can last any amount of time depending on the bird and how you deal with it. They can draw blood for sure when they want but most of the time it's more of a painful pinch.
Velcro as in they won't leave you alone, they always want to be on you and be center of attention to the point it gets really really annoying because you can't do anything, so its important to teach them independance from day one and not spoil them with attention otherwise they come to expect it and will literally do almost anything to get it back, including drawing blood if thats what gets them attention.





