The "Jungle Bird" has struck again -- and security struck back.
During Friday night's matchup at Nationals Park between Washington and the New York Mets, the environmental activist known as the "Jungle Bird" charged onto the diamond, swinging an imaginary bat, or perhaps an imaginary axe (he's an anti-deforestation advocate).
He was promptly tackled by security.
Besides Friday's baseball game, the man has also crashed other sporting events, interrupting the 2012 US Open trophy ceremony and stealing a penalty kick during a Premier League soccer match last year.
Follow Zach Noble (@thezachnoble) on Twitter