Rock Ptarmigan

The Rock Ptarmigan is a common breeding bird in Arctic Alaska and, like the Willow Ptarmigan, is one of the few birds that remain in the Arctic year-round. This species typically breeds in habitats that include a mix of rocky outcrops, graminoid meadows, and small patches of Salix or Betula less than 1 m in height (Montgomerie and Holder 2008). Unlike the Willow Ptarmigan, this species is less dependent on shrubs associated with riparian areas. In summer, Rock Ptarmigan consume a variety of foods including Dryas, Oxytropis, and Salix leaves, insects, Betula and Salix catkins, and berries (Montgomerie and Holder 2008). This species winters mainly within the breeding range but withdraws from the northernmost regions (Montgomerie and Holder 2008). Global population estimate is >8 million (Rich et al. 2004).

Data and Resources

Field Value
accessLevel public
bureauCode {010:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier 6a46e160-0862-4d2f-a15f-c1b894da2e43
metadata_type geospatial
modified 2019-09-09T01:41:03-08:00
old-spatial {"type": "Polygon", "coordinates": [[[-168.003211297, 67.7209153456], [-140.998412209, 67.7209153456], [-140.998412209, 72.0932872976], [-168.003211297, 72.0932872976], [-168.003211297, 67.7209153456]]]}
publisher LCC Network
resource-type Dataset
source_datajson_identifier true
source_hash 66f232997bcb499f56644bf5e0a0a14a8ffdb18e
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-168.003211297, 67.7209153456], [-140.998412209, 67.7209153456], [-140.998412209, 72.0932872976], [-168.003211297, 72.0932872976], [-168.003211297, 67.7209153456]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • biota
  • birds
  • ckan
  • climate-change-impact-assessment-models
  • conservation-ngos
  • federal-resource-managers
  • geo
  • geoss
  • interested-public
  • national
  • north-america
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer (Point of Contact); Arctic Landscape Conservation Cooperative (Point of Contact, Publisher)
maintainer_email lccdatasteward@fws.gov
metadata_created 2025-11-22T06:55:29.925820
metadata_modified 2025-11-22T06:55:29.925823
notes The Rock Ptarmigan is a common breeding bird in Arctic Alaska and, like the Willow Ptarmigan, is one of the few birds that remain in the Arctic year-round. This species typically breeds in habitats that include a mix of rocky outcrops, graminoid meadows, and small patches of Salix or Betula less than 1 m in height (Montgomerie and Holder 2008). Unlike the Willow Ptarmigan, this species is less dependent on shrubs associated with riparian areas. In summer, Rock Ptarmigan consume a variety of foods including Dryas, Oxytropis, and Salix leaves, insects, Betula and Salix catkins, and berries (Montgomerie and Holder 2008). This species winters mainly within the breeding range but withdraws from the northernmost regions (Montgomerie and Holder 2008). Global population estimate is >8 million (Rich et al. 2004).
num_resources 4
num_tags 14
title Rock Ptarmigan