The shadow of a Kangaroo is cast on pen at a Department of Defence property in Belconnen, Canberra May 19, 2008. Australia's military began culling hundreds of kangaroos at the defence base on Friday, enraging animal rights activists who vowed to stop the killings. Authorities say the animals threaten other local species through overgrazing. REUTERS/Stefan Postles (AUSTRALIA) BEST QUALITY AVAILABLE