Harlequin duck abundance - Gros Morne

In eastern Canada, Harlequin ducks are uncommon and are listed by COSEWIC as a species of special concern. Resident of fast flowing-rivers and streams during the breeding season, their presence and abundance reflects the health of these ecosystems. The park censuses harlequin ducks on four rivers and streams of Gros Morne National Park; the Spring breeding survey is done in 1 day of helicopter surveys, every 5 years in May.

Data and Resources

Additional Info

Field Value
Last Updated April 17, 2026, 17:58 (UTC)
Created April 17, 2026, 17:58 (UTC)
contact_email shawn.gerrow@pc.gc.ca
contact_person {}
criticality_level ["educators", "nongovernmental_organizations", "scientists", "students"]
data_dictionary []
geographic_scope ["10"]
open_canada_collection primary
open_canada_date_published 2017-10-01 00:00:00
open_canada_keywords {"fr": ["Espèces préoccupantes", "arlequin plongeur", "relevé aérien", "Terre-Neuve"], "en": ["Special Concern Species", "Harlequin Duck", "Aerial Survey", "Newfoundland"]}
open_canada_subject ["nature_and_environment"]
sensitivity_level unrestricted
title_fr Abondance de l'arlequin plongeur - Gros-Morne
update_frequency as_needed