How to collect footprints…
1. Jewell, Z. C., Alibhai, S. K., Weise, F., Munro, S., Van Vuuren, M., Van Vuuren, R. Spotting Cheetahs: Identifying Individuals by their Footprints. J. Vis. Exp. (111), e54034, doi:10.3791/54034 (2016).
2. Wildtrack.org: Photographing footprints
3. Youtube videos: