The use of online library has increased exponentially in various academic fields. Ecological studies in the area of wildlife ecology are among the most visited sites on the Internet. We believe that the different approaches used in the present studies give a general picture about the ecology, conservation and management of the mountain nyala. The results obtained from Chapters 3, 4, and 5 are relevant to knowledge gained about habitat quality, behaviors, and foraging ecology of mountain nyala. Behavioral indicators based on foraging theory are often fast, inexpensive, accurate, and simple to implement. The use of natural giving-up densities as behavioral assays would allow wildlife managers to objectively ascertain when species are under shortage of food and allow for preventive management actions, rather than taking actions only once the problem emerges. They are also easier and cheaper to use than the traditional methods. We belief that our book can serve as a guide for professionals who are interested to improve their knowledge and skills in the field of wildlife ecology through carrying out field researches using foraging theory and behavioral indicators.