Population Structure and Management of Bayang Ducks, Kamang Ducks, Pitalah Ducks and Sikumbang Jonti Ducks in the Sittu Area as Local Ducks of West Sumatra

West Sumatra, Indonesia, has four local duck species: Bayang ducks, Pitalah ducks, Kamang ducks, and Sikumbang Jonti ducks.This study aims to obtain primary data on population structure and management of the Four West Sumatra duck in in-situ areas.The respondents of this study were twenty-eight farmers who kept four West Sumatra ducks.The method employed was a survey, and purposive sampling was used to select the respondents.The observed variables were breeder profile, maintenance management, and number of ducks, actual population (Na), effective population (Ne), and inbreeding rate.The result showed that the total population of local ducks in the Sittu area is 50 Sikumbang Jonti ducks, 2428 kamang ducks, 6783 Bayang ducks, and 3870 pitalah ducks.The actual population of Bayang ducks is the highest compared to other local duck species of West Sumatra, namely 2888 heads with an effective population of 1148 heads.Local duck farmers in West Sumatra primarily raise ducks intensively at 53.57%, then 35.71% extensively or traditionally, and 10.71% semiintensively.The inbreeding rate of Payakumbuh ducks reached 2.08%.It concluded that there was a decrease in the population of local West Sumatran ducks in the In Sittu area.