Red-necked Grebe

tags: Red-necked Grebe, Podiceps grisegena, birds, mystery bird, bird ID quiz [Mystery bird] Red-necked Grebe, Podiceps grisegena, photographed in Kearny, Arizona. [I will identify this bird for you tomorrow] Image: Richard Ditch, 23 November 2006 [larger view]. Please name at least one field mark that supports your identification. Review all mystery birds to date.