CA are BCI. Colombians are BCI. Surinames and Peruvians are BCCs and NOT BCIs (as an example). BCCs are the "true redtails". Colombians are not BCCs or "true" redtails.
CAs are usually darker in appearance and grow smaller than Colombians. I'd go into more details but I need to head to workPerhaps someone can go into more detail while I'm gone.
Either way he's very handsome! I have two BCI Colombian morphs myself: a Jungle and a Hypo.