Complex sentence: Anna's hummingbird ("Calypte anna"), a medium-sized hummingbird native to the west coast of North America, was named after Anna Masséna, Duchess of Rivoli.
Split into simpler sentences: Anna's hummingbird ("Calypte anna") is a medium-sized hummingbird native to the west coast of North America. This bird was named after Anna Masséna, Duchess of Rivoli.