Eagles communicate with their mates and offspring through a variety of vocalizations and body language cues. They use different sounds, such as high-pitched whistles, screeches, and chatters to convey messages to each other. Body language plays a crucial role in eagle communication as well, with gestures like head bobbing, wing displays, and talon touches used to express emotions and intentions. Additionally, eagles also engage in mutual preening and nest building activities to strengthen their bonds and convey care and affection towards their family members.