Are turkey vultures herbivore

Yes, turkey vultures [Cathartes aura] are capable of eating cactuses. But the cactus isn't high on the turkey vulture's list of preferred foods. Instead, turkey vultures favor scavenging decaying meat. In fact, they fly low enough to the ground to be able to identify carrion by such gases of decay as ethyl mercaptan. They rarely are interested in plant matter.