Kingfishers are vibrant, small to medium-sized birds found globally, belonging to the family Alcedinidae within the Coraciiformes order, which includes similar species like motmots and bee-eaters. They are widely distributed across tropical regions of Africa, Asia, and Oceania, though some can also be found in Europe, inhabit various habitats ranging from deep forests near calm waters to dry plains and tropical coral atolls. This family comprises 116 species across 19 genera and three subfamilies: tree, river, and water kingfishers, though not all are fish specialists. Despite originating in the Indomalayan region around 27 million years ago, their diversity is now greatest in the Australasian realm. Kingfishers are characterized by their large heads, sharp bills tailored for their diet ranging from fish and invertebrates to small vertebrates, and their short legs with stubby tails. Their impressive plumage is usually bright—predominantly green and blue—resulting from the feathers' structure rather than pigmentation, with minimal sexual dimorphism. Kingfishers have excellent vision, including color vision, which helps them hunt by swooping down from perches to capture prey. They nest in cavities, particularly tunnels in earth banks or termite nests, lay white eggs, and are generally monogamous with some species displaying cooperative breeding. While most species are not threatened, certain insular species are at risk of extinction due to habitat loss and other human impacts. Kingfishers hold significant cultural value in many societies but are typically shy and elusive, contributing to their unique allure in human folklore and mythology.