The first baby whales of the season that belong to the critically endangered Northern Right Whale species have been born off Georgia and Florida.

According to the National Oceanic and Atmospheric Administration, the rare North Atlantic right whales were spotted on Dec. 4 and Dec. 7.

The whales number only 366 and their population has declined in recent years.

WATCH: Dolphins swimming with southern right whales

The whale calves were spotted swimming with their mothers off Cumberland Island, Georgia, and Vilano Beach, Florida.

The whales move north to New England and Canada to feed in the spring.

The right whale population was decimated during the commercial whaling era.

They now face threats such as ship collisions and entanglement in fishing gear.