Diversity, relative abundance and distribution of avian fauna in three states of East Sudan

Abstract The study of avifaunal diversity is an essential ecological tool, which acts as an important indicator to evaluate different habitat condition both qualitatively and quantitatively. Birds are play ecological functions, which include disease regulation, biomass recycling, seed dispersal of fleshy fruits, and pollination. The study was aimed to assess the diversity and distribution of bird species in east Sudan. The result of this finding is valuable data base on area to game orders, area specific management planers, conservationists, ecologists and provides baseline information for different scientific recommendation. Study was conducted in three states; Red Sea, Kassalaa and El Gadarif states in represent eastern States in Sudan. A point transect count aided by binocular was employed to investigate avian species diversity and distribution. Biodiversity indexes were used to calculate the bird species diversity and one way-ANOVA. All together (43) birds species belonging to (11) orders. The highest number of birds observed was Village Weaver (11.7%) belonging to order of Passeriformes. While the orders identified with the highest numbers of different bird species were Accipitriformes (18.6%); and Passeriformes (18.6). The maximum number of birds observed during in states was El Gadarif (45.3%). it concluded that the area has good potential for bird watching tourism that can integrate economic gain with biodiversity conservation. Hence, urgent conservation measures and further detail research is recommended.