I'm assuming that Khelvan's right and that the term 'pict' was not used to refer to the inhabitants of the area, but seeing as they werent conquored until the dal riada arrived a few centuries later, I guess they're the same people.
EDIT: Wait, I'v been reading what Ranika said in another post, and....seems like it's more complicated than that, basically (surprise surprise). Caledonians it is.
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