Birds are an excellent indicators of biodiversity productivity. They are vigorous for ecological functions such as indicators of pollution, seed dispersal, scavenging offal and a predators of an insects. The present study was carried out during both dry and wet seasons, from August 2018 to January 2019, with the objective to assess species composition, diversity and relative abundance of birds in the Lake Zengena Area, Awi Zone, Ethiopia. Data were collected using line transect, point count and direct observation methods for five consecutive days. A total of 100 birds species belonging to 43 Families and 12 Orders were recorded. The order Passeriformes was the dominant order represented with 57 species and 24 families. The family Accipitridae and Muscicapidae were the dominant families symbolized by nine species each. Two bird species were endemic to Ethiopia. These are Spot-breasted plover (Vanellus melanocephalus) and Blue-winged Goose (Cyanochen cyanoptera). However, the nine bird species were found endemic to both Ethiopia and Eritrea. The Great-breasted Cormorant, Blue-winged Goose, Hooded Vulture and Ruppell′sVulture were Endangered, Vulnerable, Critically Endangered and Near Threatened respeclively. The Wattled ibis (Bostrychia carunculata) was the most abundant species followed by Hadada ibis (Bostrychia hagedash) and Red-cheeked Cordon-bleu (Uraeginthus bengalus) with high sighting records. The six species were the least abundant with one sighting records. Diversity and evenness indices during the wet and dry seasons were 3.52, and 0.82; and 3.47 and 0.83, respectively. The highest species diversity (H’=3.4), species evenness (E=0.82) and species richness (RI=8.88) were observed in the lake area with the natural forest. The lowest species diversity (H’=3.09) and species richness (RI=7.13) were recorded in the habitat of plantation, but the species evenness (E=0.78) was lowest in grassland habitat. Bird species diversity, distribution and abundance depend on habitat homogeneity and heterogeneity. Heterogeneous habitat support various species of bird than the homogeneous habitat. In natural forest habitat recorded high species diversity might be due to high vegetation cover and minimum human disturbance. The homogeneity of habitat contribute low species diversity in the plantation habitat. Livestock grazing, firewood collection, tourists recreational activities and building are the main threats for distribution of birds in the present study area. Therefore, conservation action is needed to minimize these threats. Keywords: Birds, Lake Zengena, Species composition, Species diversity, Species evenness, Species richness