In this study, coloration of the feather fibers with natural dye sources was examined. By this way it was planned to introduce colored chicken feather fibers to serve for different textile applications. For the coloration of the feather fibers, the natural dye sources "Buckthorn," "Madder," and "Hibiscus" were used. During the dyeing process, different mordanting agents were added to the dye bath to see the effect of the mordanting agents and also dyeing of the feather fibers without use of any mordanting agent was investigated. Afterwards samples were evaluated in terms of color efficiencies and color values. Moreover, the washing and light fastnesses of the samples were tested. As a result, it was observed that the tested natural dye sources can be used for the coloration of the chicken feather fibers and different colors can be easily obtained with the use of these natural dye sources and mordants.