The Rochers aux Oiseaux () include the Bird Rock and the Margaulx Rock; these rocks emerge in the Gulf of St. Lawrence about from Grosse-Île. On June 25, 1534, Jacques Cartier discovered these rocks, which he named the Îles de Margaulx because of the myriad gannets (), razorbills, and great auks (now extinct) that were found there. In 1919 Brother Marie-Victorin used the name Rochers aux Oiseaux during his visit to the Rocks; since 1974, the Canadian Wildlife Service has made them a Migratory Bird Sanctuary. Bird Rock is long by wide and high, and forms a kind of red sandstone citadel that is practically inaccessible but inhabited by thousands of birds and a lighthouse that is now automated. Margaulx Rock is to the northwest, and refers to three small cays.
the rochers aux oiseaux () include the bird rock and the margaulx rock; these rocks emerge in the gulf of st lawrence about from grosse-île on june 25 1534 jacques cartier discovered these rocks which he named the îles de margaulx because of the myriad gannets () razorbills and great auks (now extinct) that were found there in 1919 brother marie-victorin used the name rochers aux oiseaux during his visit to the rocks; since 1974 the canadian wildlife service has made them a migratory bird sanctuary bird rock is long by wide and high and forms a kind of red sandstone citadel that is practically inaccessible but inhabited by thousands of birds and a lighthouse that is now automated margaulx rock is to the northwest and refers to three small cays