Anna's hummingbird (Calypte anna) is named after Anna Masséna, Duchess of Rivoli. Her husband was Francois Victor Masséna, an amateur ornithologist who accumulated 12,500 bird specimens – one of them was an unidentified hummingbird. René-Primevere Lesson was a French surgeon and naturalist who in 1882 left France for a four-year journey that would take him to South America and up the Pacific coast. Among the specimens he found was the same hummingbird that was in the prince’s collection. Lesson decided to name the bird in honour of Anna. Resident along the Pacific Coast,the male's head and throat are covered in iridescent reddish-pink feathers that can appear dull brown or grey without direct sunlight.