Wildlife viewing, involves observing nature in its natural habitat and might include such activities as hiking, bird watching, safaris and scuba diving. It is an even more popular form of outdoor recreation in the U.S. than hunting; with around 20 million people who participate. For example in 2017, approximately 12.2 million people in the U.S. participated in bird watching.
While wildlife viewing is an activity which can sometimes be done at no cost, hunting as a hobby requires some financial commitment. Participants have to purchase firearms, bullets, and also may have to pay for a license to participate. In 2017, the gross cost of hunting licenses in the U.S. amounted to 853.04 million U.S. dollars.