You can hear the cacophony before you actually see the mass of bobbing birds, and it's a stunning sight to behold.
The fiercely territorial birds mate for life, and return to the same nest year after year.
Northern gannets use seaweed to build their nests at Gaspé.
Each of the 60,000 nests here is a mere 60 centimetres away from its neighbour, so territorial disputes erupt continuously.
When the adult gannets now nesting in Canada fly south in October, they may encounter oil.