17 weeks old female shepherd puppy during training at the dog park in summer

17 animal child animals animal black canis familiaris central europe cub deserted dog parks dog park dog domestic animal domestic dogs domestic dog empty europe's europe exercises exercise females female frg german federal republic germany german hatchling herder herding herdsman herd juveniles juvenile means of transportation means of transport middle europe nobody no one no people old pets pet practice practicing practise puppies puppy pup railroad rail traffic railway republic of germany routine seventeen shepherds shepherd suckling summery summer trainings training trains train transportation transports transport uninhabited weeks week works out young animals young animal youngster young yuvenile