Podicipitiformes is a scientific name for a group of birds commonly known as grebes. Synonyms for this term include the order name Colymbiformes and the family name Podicipedidae. These aquatic birds are characterized by their small size, flattened bills, and lobed toes. They are excellent swimmers and divers but are clumsy on land, as their legs are positioned at the back of their bodies. The grebes are found worldwide, in both freshwater and saltwater habitats, and they feed primarily on fish and small invertebrates. Many species of grebes are threatened or endangered due to habitat loss and pollution, making their conservation an important priority.