Computerized Database of Québec Seabirds (CDQS)

The Computerized Database of Québec Seabirds (CDQS), also known as the Banque informatisée des oiseaux marins du Québec (BIOMQ), is a database that allows to monitor the status, distribution, and trends of seabird populations nesting in Québec, particularly along the shores of the river, estuary, and Gulf of St. Lawrence. Compiled and regularly updated for over 40 years by the Canadian Wildlife Service (CWS), Québec region, it contains information on seabird colonies composed of Gaviidae (loons), Hydrobatidae (storm-petrels), Sulidae (gannets), Phalacrocoracidae (cormorants), Laridae (gulls, terns), Alcidae (murres, auks, puffins), and Common Eiders (Anatidae). The data comes mainly from seabird colony surveys conducted by the CWS during the breeding season but are also enriched by numerous scientific sources. It includes, among other things, data from the literature dating back more than a century, as well as observations from amateur ornithologists. For more information, consult the data context.

Data and resources

  • The Quebec Seabird Computerized Bank
    CSV Open
  • Description of the variables measured and meaning of the codes used
    PDF Open
  • Geodatabase representing different colonies listed in the database
    ZIP Open
  • See the dataset on the GBIF (Global Biodiversity Information Facility) biodiversity platform
    HTML Open
  • See the dataset on the OBIS biodiversity platform (Ocean Biodiversity Information System)
    HTML Open

Additional information

DOIhttps://doi.org/10.26071/b04cc62f-8774-4978
Temporal extent1534-07-04 – ongoing
Vertical extent0.0 – 0.0 m
Date (creation)1534-07-04
Date (publication)2017-03-27
Date (revision)2026-02-19
StatusonGoing
Update frequencyasNeeded
Metadata languagefr
Licensegovernment-open-license-canada
Source metadataISO 19115 XML
Last updated2026-07-31
Created2026-07-31
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