Passerini's Tanager (Ramphocelus passerinii) was named for Carlo Passerini, a professor at the Museum of Zoology of the University of Florence. The male is mainly black except for the red rump, silvery / pale blue bill with dark tip, and dark red irises. The female has a grey head and throat, and a yellowish or brownish olive plumage turning brighter and paler on the rump. The Passerini’s Tanager is found on the Caribbean side of Central America, but not typically on the Pacific side where its sister species Cherrie’s Tanager lives.
See also: Cherrie's tanager