In the United States, thanks to the Pittman-Robertson Act, funding for wildlife conservation (including nongame species) comes primarily from the sale of hunting/fishing licenses and an excise tax on hunting/fishing equipment.
The Teaming with Wildlife Act tried to extend the excise tax for items sold to non-consumptive outdoor recreationists (sleeping bags, binoculars, etc.). However, this was not passed, thanks in large part to the major companies selling this gear.
The recent Recovering America’s Wildlife Act would have opened up additional funding if it had been passed 
.