In biological classification, a genus is more specific than a but broader than a species . It provides the first part of a bird's scientific name (the generic name), while the second part identifies the specific species. For example:
: Includes "gray geese" like the Greylag Goose, distinct from the "black geese" in the genus Branta . Diversity and Specialization bird genus
: The corvid family ( Corvidae ), containing genera like Corvus (crows and ravens), is noted for having some of the highest cognitive abilities in the bird world. In biological classification, a genus is more specific
: Comprises medium to large pigeons, such as the common Rock Pigeon ( Columba livia ). Diversity and Specialization : The corvid family (
: A rare phenomenon in birds, certain genera like Pitohui and Ifrita in New Guinea have evolved neurotoxic alkaloids in their feathers and skin as a defense mechanism. Modern Identification and Research
Bird genera vary widely in their size and specialized traits. Some are cosmopolitan, while others are restricted to tiny geographic pockets: