Data for Determining Age of Barrow's Goldeneye (Bucephala islandica) from External Characteristics, Alaska and Canada, 2007-2015

These data describe an exercise in which known age and sex class of 100 Barrow’s goldeneyes (Bucephala islandica), determined by expert examination bursa and plumage, was contrasted with age and sex classes estimated from photos by trained observers.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
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 USGS:ASC312
metadata_type geospatial
modified 20201125
old-spatial -149.25, 47.87, -122.08, 61.65
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash e0897f97cc43c8657ee4003507592307d48f210d
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-149.25, 47.87], [-149.25, 61.65], [ -122.08, 61.65], [ -122.08, 47.87], [-149.25, 47.87]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • age-composition
  • alaska
  • amerigeo
  • amerigeoss
  • animals-vertebrates
  • barrows-goldeneye
  • biota
  • birds
  • british-columbia
  • bucephala-islandica
  • canada
  • ckan
  • ducks-geese-swans
  • environment
  • field-sampling
  • geo
  • geoss
  • indian-arm
  • migratory-birds
  • national
  • north-america
  • plumage
  • population-dynamics
  • prince-william-sound
  • sexing-plants-amp-animals
  • stephens-passage
  • terrestrial-ecosystems
  • united-states
  • usgs-asc312
  • waterfowl
  • wildlife-biology
isopen False
license_id notspecified
license_title License not specified
maintainer U.S. Geological Survey, Alaska Science Center
maintainer_email ascweb@usgs.gov
metadata_created 2025-11-21T16:43:22.784638
metadata_modified 2025-11-21T16:43:22.784642
notes These data describe an exercise in which known age and sex class of 100 Barrow’s goldeneyes (Bucephala islandica), determined by expert examination bursa and plumage, was contrasted with age and sex classes estimated from photos by trained observers.
num_resources 2
num_tags 31
title Data for Determining Age of Barrow's Goldeneye (Bucephala islandica) from External Characteristics, Alaska and Canada, 2007-2015