Observations of Whooping Cranes During Winter Aerial Surveys: 1950–2011

Metadata Updated: January 29, 2020

The Aransas-Wood Buffalo population of whooping cranes (Grus americana) declined to near extinction by the 1940s. Starting in winter 1950–1951, annual aerial surveys were conducted to observe and record the number of whooping cranes wintering on Aransas National Wildlife Refuge (NWR) and surrounding areas. This effort resulted in 38,332 observations of whooping crane groups being marked on paper maps between winter 1950–1951 and winter 2010–2011. We digitized those locations by matching the ArcMap 10 screen display as close as possible with the paper maps and approximating points in each of the marked locations. These data are freely available to the public. However, we caution that these data have quality issues and limitations due to, but not limited to, inconsistencies and lack of documentation on how data were collected, reliance on perceived knowledge of unmarked birds’ identities, and inaccuracies introduced during both recording and digitization. For more information refer to the document entitled "Observations of Whooping Cranes During Winter Aerial Surveys: 1950-2011." We request that proper credit to the compilers of this dataset is explicitly included in any work using these data. doi:10.7944/W3RP4B

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date January 29, 2020
Metadata Updated Date January 29, 2020

Metadata Source

Harvested from DOI Open Data

Additional Metadata

Resource Type Dataset
Metadata Created Date January 29, 2020
Metadata Updated Date January 29, 2020
Publisher Fish and Wildlife Service
Unique Identifier FWS_ServCat_41842
Brent Frakes
Maintainer Email
Public Access Level public
Bureau Code 010:18
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID C:\Program Files (x86)\FWS\DataStore\Application\OpenData\FWS_ServCat_v1_1.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 3f20b7b4-4cbe-4c30-8145-039d7de7f355
Harvest Source Id 5b7e4031-1e2d-428b-92e2-56554bbd7371
Harvest Source Title DOI Open Data
Data First Published 2015-01-01
Homepage URL https://ecos.fws.gov/ServCat/Reference/Profile/41842
Data Last Modified 2015-01-01
Program Code 010:094, 010:028
Related Documents "https://ecos.fws.gov/ServCat/Reference/Profile/41842"
Source Datajson Identifier true
Source Hash 81853b704b54e7dcf67f52331630824ed9baeddb
Source Schema Version 1.1
Spatial -96.9942,28.05735,-96.3856,28.53755
Temporal 1950-01-01/2011-01-01
Category "Tabular Dataset"

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