The focus of this work is the techno-functional study of domestic appointed equipment made from bird bones of maritime hunter-gatherers from the central of Strait of Magellan during the Intermediate Period (± 4300 to 2700 cal. BP). Throughout the maritime occupation of the region, this tool kit is mainly composed of awls made on long bones with one end removed then appointed. The only variations observed are based on the choice of the anatomical support (tibiotarsus, humerus or radius), according to its morphological and metric characteristics. According to ethnohistorical documents, the hypothesis concerning the use of these tools are various since they could have been used to perforate a material (skin, bark) as well as to separate plant ...