First, BCI are found from northern and western Colombia through Mexico. So you are asking about locality differences, which are hard to characterize, especially as place of origin often gets lost after a snake passes through several owners between importer and final owner. And one owner may cross boas from different countries.
Temperament: There is enough range in temperament that you can get a nasty BCI from anywhere in the range. Most BCI are pretty good, though. The biggest factor is whether you start with a captive bred baby or a wild caught adult. The CB baby has by far the best temperament. And I figure that the worst temperaments are going to be selected out after a couple of generations of captive breeding.
Visual appearance: Boa constrictor babies tend to be rather dark and lighten a bit as they age. But speckling remains constant. Get pictures of the baby and parents before buying, if possible, so you can see if you like the looks.
Size: Male Colombians commonly get into the 7-8 feet length. Male Central Americans may get as big as Colombians or only get into the 5-6 foot range. But there is so much variation in genetics and feeding that size is impossible to guarantee. Best guide is the size of the parents.
A 4x2 cage is just adequate for an 8 foot 0 inch boa, IMO. But bigger is better.
Reply With Quote