 The hunter may have the additional option to be kept regularly updated on the animal's future movements if the darting was part of a GPS collaring project.Though still costly (sometimes upwards of $25,000 USD), green hunting is more economical as fees are lower than trophy hunting (up to $60,000 USD).The fees finance the conservation project that necessitates an immobilized animal for micro-chipping, ear-notching, tissue collection or GPS tracking and any additional funds can be used to support the management of the protected area involved.