[quote=@Cyclone]

From my reading, I took it to mean that they can naturally commune with nature and "lesser" beasts, but lack the capacity to ever talk to one another or other sapient beings.

I had figured that this ability was naturally inferior to real speech and that you had given them this to avoid stepping on my toes. But in any case, giving them an actual language wouldn't revoke this ability to understand animals etc.
[/quote]

Ah yes that is exactly what I intended. I or someone else can gift the Centaurs a sapient language or form of communication at a later date but as off now you are correct.

I probably was just terrible at explaining what I meant the first time, in any case are you planning on having your heroes interact with them after all you do talk about them in your first point.