Beluga Whales: Canaries of the Sea

From National Oceanic and Atmospheric Administration (NOAA):

Beluga whales have flexible necks, allowing them to move their heads. Their complex communication repertoire of whistles, clicks, and chirps has prompted the nickname “canaries of the sea.” Learn more about the Cook Inlet beluga whale, aNOAA Fisheries Service Species in the Spotlight:http://www.fisheries.noaa.gov/stories/2015/05/spotlight_cook_inlet_beluga_whale.html#WhaleWeek2017