SKOWHEGAN — Being an “Indian” does not mean slipping into a pair of moccasins and donning feathers during halftime at a football game. Being an “Indian” does not mean being a sports mascot. It means being a person — a people — some of whom remember growing up on a reservation and suffering racism, only to find themselves at a meeting in a middle school cafeteria in 2015 challenging the image and the name of the Skowhegan Area High School sports teams’ nickname. The Skowhegan Indians. That was the message Monday evening from 10 representatives of the Penobscot, Passamaquoddy, Maliseet and Micmac Indian tribes — the Wabanaki federation — the federally recognized name for Maine’s four tribes meaning People of the Dawnland.