What basic need do kingfishers meet by flying over the bodies of the water?

Kingfishers fly over bodies of water primarily to hunt for food, which mainly consists of fish and aquatic invertebrates. By surveying the water from above, they can spot their prey and dive swiftly to catch it. This behavior is essential for their survival, as it provides the necessary nutrients and energy for their daily activities. Additionally, it helps them fulfill their reproductive needs by ensuring they can feed their young.