In contrast, scientific studies found that there are 10,721 bird species in the world. With so many species, it could be difficult to keep track of their interdependence and grasp how diversity is spread over the earth.
This is where the bird families come from. The bird families are groups of species that generally are more closely related to one another than to any other. The bird families, unlike species, are not genuine biological entities but rather human constructions used to assist scientists in grasping variety.
While the definition of a family is rather ambiguous and imprecise, all families, and all taxonomic ranks for that matter, adhere to one basic rule: monophyly. That is, members of one family are more closely connected to one another than members of another; they share a common ancestor. As a result, studying a family’s common features can help us comprehend avian biodiversity, both within and between families.
In Sri Lanka, you can find more than 35 bird families. Some of them are categorized as follows.