This book presents the latest research that reveals the full ecology of the Mountain Hawk-Eagle, a species that is very hard to study, even though it is an indicator of forest ecosystems rich in biodiversity. It is the first full monograph based on more than 40 years of fieldwork by the Mountain Hawk-Eagle Ecology Research Group. Following the 2023 publication Mountain Hawk-Eagle Ecology Illustrated, this is an essential book for raptor observation and environmental assessment.