Cayes à Meck are three small islets located in the western part of the Mingan archipelago, 1 km off the north shore of the Gulf of St. Lawrence, Québec. The IBA encompasses the land and water in a two km radius circle which has its centre point in the middle of the largest island. The islets of the Mingan archipelago are comprised of limestone rock, which is extensively quarried in nearby areas. These islets are part of the Mingan Archipelago National Park Reserve; information and interpretation centers are located in Havre-Saint-Pierre and Longue-Pointe. Mean annual temperature is 1.5°C and mean annual tidal amplitude is approximately 1.5 meters.
Many Common Terns, and a small number of Arctic Terns breed at Cayes à Meck. Numbers seem to currently in decline since in 1992, 1,325 pairs were recorded, in 1995 583 pairs were recorded and in 1999 475 pairs were present. The three-year average of 954 pairs is over 1% of the North American population of Common Terns, however a small, unknown proportion of the terns are Arctic Terns. Ring-billed Gulls and Common Eiders also breed on these islets. In 1998, over 200 pairs of gulls and 19 pairs of Common Eiders were recorded. In winter, large flocks of Common Eiders can be found in the waters surrounding the Mingan archipelago.
BirdLife International (2019) Important Bird Areas factsheet: Cayes à Meck. Downloaded from http://www.birdlife.org on 15/12/2019.