no, Sage was there first, i know this for a fact because the first Sage members were my friend group of dinosmash players who had just transferred over to graal, including iggy(leader), majora, seek, find, etc. SiB wasn't ever a clan but just Sage resurfacing in guild form. i was in the Sage clan and the SiB guild.

basically something like this:

Sage as a place of origin ---> died out and guilds became a thing ---> SiB (Sage is Back) and i guess Sky Birds led by tyler/hermes (Sage).