“I love working here. It’s a unique place, and I love the challenges that come with it.” – Dave, assistant curator and Free-Roaming Area keeper, Northwest Trek 8am Dave swings into the keeper truck with the ease of someone who’s been doing it for 25 years. As he pulls slowly through the gate into the Free-Roaming Area, he’s already on duty. Alert eyes scan the road ahead and forest to either side. It’s something he’ll be doing constantly over the next two hours, whether he’s driving around the 435-acre habitat, pulling out feed buckets or taking radio calls from fellow …