how come vultures haven't been put under saprophyte category ?even they depend on other dead organisms for their nutrition rite??

Vultures are scavengers as they feed upon dead animals. Saprotrophs is the correct word instead of saprophytes because phytes means plants.They are not considered as sparotrophs as saprotrophs take their nutrition from dead and decaying matter by dissolving them and absorbing through their body surface. Vultures do not use this method so they are not classified under saprotrophs.