Meat
I don't think you'd get a lot of argument from conservatives or from sportsmen from either side of the aisle about protecting endangered species like mountain gorillas, certain whales, and many others.
Where the nutcases start to come in is when people start making rats and domestic chickens the equivalent of human beings.
Also, if a species is numerous enough to safely hunt without fear of reducing its numbers significantly, why not? (less numerous species cost a lot to hunt--a grizzly bear license in Wyoming used to go for $17,500 for a non-resident, and $1,750 for a resident. I think they're parked on the endangered list right now.)
Certainly it's no more or less murder to shoot and eat a deer than it is to kill and eat a cow.