The bowhead whale

... can weigh 75 tonnes (74 long tons; 83 short tons) to 100 tonnes (98 long tons; 110 short tons),[3] second only to the blue whale, although the bowhead's maximum length is less than several other whales(...)

The bowhead was an early whaling target. Its population was severely reduced before a 1966 moratorium. The population is estimated to be over 24,900 worldwide, down from an estimated 50,000 before whaling...

Source: The bowhead whale
Author: Wikipedia

Link: Capturing the Winter Songs of Rare Whales
Link: Critically endangered whales sing like birds; new recordings hint at rebound (w/ audio)
Link: Fewer isolated pods of Alaska whales...
Link: Taloyoak, Nunavut, gets ready for bowhead whale hunt
Link: The boshead song