Charadriiform Birds in the Ethiopian Rift Valley Charadriiform Birds in the Ethiopian Rift Valleyv. 414–18Ash, John S. 1972. "Charadriiform Birds in the Ethiopian Rift Valley." Walia, 4 14–18.More...ID: 100923Type: articleKeywords: NMNH; NH-Vertebrate Zoology; Annals-Import