NDGF Help Center FAQ
Why does the Department send out surveys instead of using check stations?
A lot of states have voluntary, or even mandatory, reporting of deer harvest from successful hunters through physical check stations or via internet and telephone check-in systems. Although these reporting methods likely provide more data than questionnaires sent to a randomly selected sample of hunters, they come with important disadvantages.
Performing statistical assessments of harvest data from check stations is more difficult because: (1) the number of hunters that receive a license but do not go hunting is unknown, (2) the number of unsuccessful hunters is not known, because they are only required to report if they harvest a deer, and (3) the number of successful hunters who choose not to report the results of their hunt is not known. Therefore, harvest data from check stations potentially comes with additional problems not present in a probabilistically designed survey.
The surveys the Department uses measure unsuccessful hunters directly, and if there is bias from non-reporting, it can be dealt with by measuring the form and extent of non-response, or through statistical procedures (e.g. weighting). In addition to assessment disadvantages, physical check stations are costly to run and can be an inconvenient burden to hunters if the station is located far away from where the deer was harvested. Given the disadvantages associated with check stations the Department believes surveys provide a better estimate of deer harvest, are more cost-effective, and are more convenient for hunters.