“Ordinary morality is only for ordinary people,” Aleister Crowley once said. That maxim echoes inside the walls of a new exhibit at 80WSE, Language of the Birds: Occult and Art. Even now, when dabbling in the occult has become morally ambiguous rather than universally derided, the work shown at NYU Steinhardt’s gallery is far from ordinary. Spanning the beginning of the last century to the present day, its authors range from avant-garde filmmakers (Kenneth Anger), to spiritual philosophers (Aleister Crowley), to industrial music makers (Genesis Breyer P-Orridge), and “just” plain artists (Kiki Smith). Somehow these varied participants share a similar worldview, which they’ve communicated (at various points in time) through symbols and talismans that have remained fairly static throughout.