I highly recommend this company for any tours of Yellowstone. I did two Wildlife Tours with Tied to Nature at the end of May, 2022. The first was with guide Scott, and the second was with Adam and John. I booked the first tour for the group I was traveling with. The second was just for me when the rest of the group decided to go to Bozeman.
The guides were incredible spotters. They’d see a shadow move somewhere in their peripheral vision and know not only that it was an animal, but what type of animal it was. They were also extremely knowledgeable about all aspects of the Park - geology, biology, a little physics (the geysers), and chemistry. They not only live near the Park, they LOVE the Park and all things related to it, and it shows in their enthusiasm, curiosity, and the breadth of detail they relay. The guides were equipped with spotting scopes and set them up in a flash so you could get a close up of the critters, which were sometimes right on the road, and sometimes a mile or more away. The scopes also allowed for great pictures and videos.
The vehicles were roomy and clean. The guides were diligent is seeing to your comfort and made sure you had all the breaks you needed to relieve yourself. The snacks and drinks were varied and plentiful. The packed lunches were substantial. They vans were driven safely and with confidence by the guides.
Wildlife spotting is always a gamble. You’re at the mercy of the animals, who may or may not cooperate. I can tell you, if there’s an animal out there, this bunch will find it for you. We happened to be in Yellowstone in what I think is the ideal time for wildlife. All the animals were moving down to the valley and had their newborns and young ones with them. What we saw included grizzly bear (with cubs), black bear (with cubs), wolves (with pups), coyotes (with pups), bison (with calves), pronghorn, mountain goats, big horn sheep, elk, moose, bald eagle, golden eagle, osprey, ground squirrels, mule deer, ravens, magpies, and red-tailed hawks. Basically, best time ever!