The concept of grouping objects together in larger clusters is very basic to human needs. Such ideas are built into all human languages and cultures.
Every language uses 'specific identifiers', specific words or terms for an object.
Nouns such as 'bluejay', 'finch', 'sparrow', 'thrush' and 'canary', are used to specifically identify unique objects or creatures. Any naturalist told that you had just seen a 'canary', would instantly be able to picture the small, yellow feathered avian you were talking about. Languages also have other words that are used to identify things, but with a different purpose. These are grouping words that are used in a more general way to reference groups or clusters of objects. Use the term 'birds' and your listener will have a general idea of what you are talking about.