Don’t be surprised to see a personable pup working alongside her National Park Service ranger-partner when you travel the Going-to-the-Sun Road in Glacier National Park. “Bark Ranger” Gracie is a well-trained border collie tasked with keeping wildlife away from (human) park visitors in busy areas like the Logan Pass parking lot. She’s specially trained to move wildlife like bighorn sheep or mountain goats away without any physical contact. She intimidates them with her stare and moves them just far enough away so they can still be seen and photographed by visitors. Gracie does not work with predators like bears, and she has proven more effective than traditional hazing techniques like shouting or arm-waving.

Habituation occurs when animals have repeated contact with and lose their fear of humans. Habituated wildlife may appear tame, but they are still wild animals and can be aggressive or dangerous.

When she’s not working, Gracie and her handler often chat with visitors about staying a safe distance away from wildlife. They are wildlife safety ambassadors and even have an Instagram account. You might see her working in her orange vest at Logan Pass during the summer, happily posing for a selfie – or just enjoying belly rubs.

“Bark Ranger” Gracie looks back at Ranger Mark Biel while watching a herd of bighorn rams grazing just downhill from the Logan Pass parking lot in Glacier National Park in July 2017. Gracie and Ranger Mark prevented these sheep from ever entering the parking lot. Courtesy National Park Service/Alice W. Biel

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