Hard to say really. Peru boas are a little more difficult sometimes in regards to their temperament. Some of them have attitude all their life no matter what you do for them or how much you try and work with them.. The first boa photoed is the same way. She's down right onery. I have a few 08's from Damico and they started out like little pistols but have calmed down considerably in the last several months.
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Sounds to me that she's just being a Peruvian. She should calm down some w/in the first year.