Given the vastness of Tsavo, tourists' and stakeholders' submitted photographs assist me in individually identifying members of this very important cheetah population. Auxiliary information such as date, GPS readings, landmarks and group composition are also useful in following up on sightings of individuals and monitoring them in areas of conflict. Please let me know if you would like me to send you a guideline / recording sheet, if you're heading to Tsavo, soon!
Remember to be 'cheetah-friendly' and only take photographs from a distance and on designated roads, so as not to invade the cheetah's space and interfere with their hunting or other natural behaviour (this applies to all wildlife).
Stop and scan with your binoculars from an open roof hatch or tour mini van. This is often the way I sight individuals from afar, without the need to get much closer or ever go off road (which is not permitted in Kenyan Parks) for an optimal photograph.
See my "Spotting a Cheetah" post, for desired angle positions.