Hylocharis leucotis 70 Oct. 22 El Batel, 5100 feet, Sinaloa. both yesterday and today another adult male has been present. But two other species of trochilids have been seen or collected: Leopold obtained a specimen (Amazilia?) from a clearing below camp on Oct. 19, and both on the 16th and 18th I saw, briefly, a large hummer in flight which generally by the dark coloration, with blue anteriorly and white tips on the outer tail feathers, has been identified as the blue-throat, Lampornis clemenciae.