It was first spotted in the St. Lawrence River at the end of May.
They've never been seen in the area before.
Eight of the animals have been found dead in Canadian waters this year.
The government says it's taking the matter "very seriously" following a string of fatalities.
Some whales use sound to navigate and hunt. Noise pollution is threatening their existence.
It would finally ban the breeding, display and trade of whales, dolphins and porpoises.
Fun fact: Belugas are the only whales with flexible necks.
Scientists are interested to see if the animals breed together.