Wolves Howl in Yellowstone

Occurred on December 27, 2019 / Yellowstone National Park, Wyoming, USA

Info from Licensor: "I was guiding a winter tour in Yellowstone, when I spotted wolf tracks all over the road. We caught a glimpse of the wolves traveling in the road, so we moved on down the road then stopped and waited. About ten minutes later, they returned to the road and came around the bend behind my snow coach. Two of the younger wolves passed me and the rest disappeared. Looking to find the rest of the pack again, the wolf in front of me began howling to summon the pack. After a few minutes, the alpha female appeared behind us, leading the rest of the pack. They howled the summons, and the young wolf then passed me again to join the pack."