Battery cage chinchilla and foxes in fur farming, and most recently for the Asian palm civet for kopi luwak production of coffee. An early reference to battery cages appears in Milton Arndt's 1931 book, "Battery Brooding", where he reports that his cage flock was healthier and had higher egg production than his conventional flock. At this early date, battery cages already had the sloped floor that allowed eggs to roll to the front of the cage, where they were easily collected by the farmer and out of the hens' reach. Arndt also mentions the use of conveyor belts under the cages to
Ugolnye Kopi facilities for those working in or administering the nearby mines, hence the name, and later to provide the same services to those working in the air industry at the local airport. Within the framework of administrative divisions, Ugolnye Kopi is directly subordinated to Anadyrsky District. As a municipal division, the urban-type settlement of Ugolnye Kopi is incorporated within Anadyrsky Municipal District as Ugolnye Kopi Urban Settlement. Ugolnye Kopi is located on the road between the Ugolny Airport and Shakhtyorsky. Unlike a large number of localities in the region, Ugolnye Kopi's demographics is mainly Caucasian. The Red Cross reports that only