The current western gray whale population summers in the Sea of Okhotsk, mainly off Piltun Bay region at the northeastern coast of Sakhalin Island (Russian Federation). (en.wikipedia.org)
[29] The Russian Academy of Sciences has identified an increasing population of western gray whales in the Sea of Okhotsk during a photo identification research programme. (en.wikipedia.org)
Critically endangered western gray whales migrate into their summer feeding grounds near Sahkalin Island, Russia in late May or early June and return to their winter feeding grounds in the South China Sea in late autumn. (worldwildlife.org)