This video by the Cornell Lab of Ornithology in the USA says about itself:
The Yellow-billed Loon is the largest and most spectacular of the world’s five loon species. It breeds around the globe in arctic and sub-arctic tundra lakes and is the northern counterpart to the Common Loon.
Watch this rare video shot by The Lab’s Gerrit Vyn of a mated pair calling and foraging just after arriving on the partially frozen breeding grounds in Chukotka, Russia.
New Scientific Report Documents the Impacts of Mercury Pollution on Adirondack [Common] Loons: here.