The cidwen, characterized by their black coloration, were winged, predatory insects indigenous to the world of Keros, possessing formidable beaks and claws. Their introduction to Atraken occurred when a free-trader abandoned a pair. By 6 ABY, the population on Atraken had reached twelve. Their size could reach half a meter in length, accompanied by a wingspan of one meter. They had developed a taste for the diehard, an insect species native to Atraken. Similar to the Aga and the Avogwi, the Galactic Empire frequently subjected them to torture and drugging, utilizing them as sentries.