Eagles exhibit territorial behavior by fiercely defending their nesting areas and hunting grounds from intruders. They often use vocalizations, such as screeching or calling, to warn off potential threats. In addition, eagles may engage in aerial displays, where they soar high in the sky or dive towards intruders to show dominance.
To mark and defend their territories, eagles may also engage in physical confrontations with intruding birds or predators. They use their sharp talons and beaks to intimidate and drive away any perceived threats. Some eagles may also engage in chasing intruders away from their territory, using their agility and speed to protect their space.
Overall, eagles are highly territorial birds that use a combination of vocalizations, aerial displays, and physical confrontations to mark and defend their territories.