In October and November, we see all the mothers and calves coming down the coast.
This is what this whole migration is about with whales leaving the cold Antarctic waters where all their food is, to move north to warmer waters to give birth and to mate. We estimate that the whale population grows by about 10% each year.
In 2018 the total number of whales swimming past Sydney is estimated to be about 30.000 which means about 3000 newborn calves will make their way south past Sydney over the next 2 months or so.