We explore how dogs navigate changing odor pictures and what handlers must do to support their dog's odor pathway to source. From haunted houses to school gyms, we share Handler, CO and judging insights, trial lessons, and practical training setups that build dog and handler odor recognition of the multitude of odor puzzles we encounter in nosework and scent work trials. • defining pathway to source and odor availability • why heaters, humidity and doors reshape odor pictures • balancing han...