So is there a difference between "Jungle" and "Jungle M"??? Does that mean parrots won't spawn in Jungle M? I've been looking around in a Jungle M area for hours and I have yet to find any parrots ;__;
Check the biomes page on the wiki for that, there is indeed a difference between Jungle & Jungle M.
But yeah: parrots only spawn in jungle biomes and not any of the variants (Jungle M, Jungle Edge, etc.).