North Pacific right whale
In the summer beluga whales aggregate in the mouths of the Syran and Ulban rivers at the head of Ulban Bay, while bowhead whales are also common in the bay during that time of year. In July 2011, an endangered North Pacific right whale was photographed in the bay – which is considered a vagrant to the region. Waders use the southern part of the bay as a stopover during their summer migration. The most abundant species are Terek sandpiper, Great knot, and wood sandpiper.