“Zhang Huan: Seeds of Hamburg” showcases a powerful performance by Chinese artist Zhang Huan, known for his ritualistic body art. In 2002, at the Kunstverein in Hamburg, Germany, the artist coated himself in honey and birdseed, and entered a cage where doves pecked the seeds away. “Seeds of Hamburg” is a series of twelve photographs documenting the event; the exhibition also celebrates the recent promised gift of four of the photographs to the MFA by Doug and Dale Anderson.