As the calendar falls deeper and deeper into spring, more and more birds are passing through the National Park System. And on May 9, in honor of Migratory Bird Day, you can bird with a ranger at Grand Teton National Park.

National Park Week officially kicks off tomorrow, April 18, and if you're wondering how to celebrate, the National Park Service and National Park Foundation have some ideas.

Human encroachment, elk feedlots, and climate change increasing are puttin pressure on the survival of grizzly bears in the greater Yellowstone ecosystem, and the annual elk reduction hunt at Grand Teton National Park is an unnecessary stressor that is impacting the bears' survival in the ecosystem, according to a lawsuit filed against the National Park Service, Interior Department, and U.S. Fish and Wildlife Service.

For the next five weeks you can enjoy traveling the Teton Park Road in Grand Teton National Park by bike, roller-blades or skis, or simply walking. The road has melted down to pavement in most places and is now open to non-motorized recreation.