Her sacred bird was the ostrich
She was often considered as a concept as well as a physical being. Not only was she the goddess of truth and justice, she WAS truth and justice.
Ma'at had a temple in Karnak though it is now in ruins.
Ma'at was reality, the solid grounding of reality that made the Sun rise, the stars shine, the river flood and mankind think.
Her roles were later absorbed by the Goddess Isis.
Very exacting in her standards. There were no second chances.