Order Insessores, also known as Passeriformes, refers to a group of birds commonly called songbirds or perching birds. These avian creatures are known for their musical calls and are found all around the world in various habitats. The Order Insessores comprises more than half of all bird species and includes notable families such as finches, thrushes, sparrows, and many more. Synonyms for Order Insessores include Passerines, Oscines, and perching birds. These birds are incredibly diverse in color and size, and their stunning musical abilities make them a beloved part of our natural world.