The Nile Valley sunbird (Hedydipna metallica) is a species of bird in the Nectariniidae family. It is found in Djibouti, Egypt,Eritrea, Ethiopia, Oman, Saudi Arabia, Somalia, Sudan, libya, and Yemen.
In February, the male Nile Valley sunbird assumes his nuptial plumage which he displays in flamboyant fashion. In winter both sexes look alike, tiny, only 9 to 10 cm long, pale grey above and washed-out yellow below, with a long, slender and slightly down-curved bill. source