The genus Circaetus refers to a group of birds of prey commonly known as serpent eagles or snake eagles. There are several synonyms for this genus, including the old world serpent eagle, the African snake eagle, and the brown snake eagle. These birds are primarily found in Africa and Asia, and they are known for their distinctive, hooked beaks and sharp talons. Circaetus species typically hunt snakes, lizards, and other small prey, and they are well adapted to soaring and gliding through the air in search of their next meal. Despite their fearsome appearance, these birds play an important role in their ecosystems and are a fascinating subject of study for ornithologists and bird enthusiasts alike.