Rock ptarmigan population size - Gros Morne

The Island of Newfoundland is home to the most southerly population of Rock Ptarmigan in North America and is the only place where the subspecies Lagopus mutus welchi can be found. Rock Ptarmigan are the only species of bird that live year round in the Alpine tundra of Gros Morne. This measure aims at a population count and trend for breeding Rock Ptarmigan on top of Gros Morne Mountain. The survey occurs yearly, between May 26 and June 1.

Data and Resources

Additional Info

Field	Value
Last Updated	April 17, 2026, 22:05 (UTC)
Created	April 17, 2026, 22:05 (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": ["Lagopède alpin", "Lagopus muta", "toundra alpine", "mont Gros‑Morne", "dénombrements visuels", "Terre-Neuve"], "en": ["Rock Ptarmigan", "Lagopus muta", "alpine tundra", "Gros Morne Mountain", "Visual Counts", "Newfoundland"]}
open_canada_subject	["nature_and_environment"]
sensitivity_level	unrestricted
title_fr	Taille de la population de lagopède alpin - Gros-Morne
update_frequency	P1Y