CHAS Ornithology (Arctos)

Latest version published by Chicago Academy of Sciences on Apr 18, 2024 Chicago Academy of Sciences

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The Chicago Academy of Sciences ornithology collection includes over 13,000 specimens, with approximately 12,000 skins and 1,000 mounted specimens. An important addition in 1965 was the donation of 3,600 specimens from S. S. Gregory, which includes the extinct Ivory-billed Woodpeckers and Carolina Parakeets. In all, 583 species of North American birds are represented. Thirty percent of the birds were collected before 1900, including important Illinois specimens from Robert Kennicott and Benjamin T. Gault. There is also a valuable collection of nearly 1,000 Alaskan skins. Other notable collectors include Alfred M. Bailey, P. Brodkorb, Charles D. Brower, Henry K. Coale, Francis S. Dayton, Ruthven Deane, Stephen Strong Gregory, Charles D. Klotz, Roy V. Komarek, Edwin V. Komarek, C. C. Sanborn, and Earl G. Wright.

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 15,993 records.

1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

Occurrence (core)

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.


The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

Chicago Academy of Sciences Ornithology Collection (CHAS) - Ornithology


Researchers should respect the following rights statement:

The publisher and rights holder of this work is Chicago Academy of Sciences. To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 16965647-4120-4e0b-aa57-1eeaf028606e.  Chicago Academy of Sciences publishes this resource, and is itself registered in GBIF as a data publisher endorsed by U.S. Geological Survey.


Occurrence; Specimen; Occurrence


Dawn Roberts
  • Metadata Provider
  • Originator
  • Point Of Contact
Director of Collections
The Chicago Academy of Sciences
2430 North Cannon Drive
60614 Chicago
+01 773-755-5125
Erica Krimmel
  • Point Of Contact
Assistant Collections Manager
The Chicago Academy of Sciences
2430 North Cannon Drive
60614 Chicago
+01 773-755-5118
David Bloom
  • Programmer
John Wieczorek
  • Programmer
Information Architect
Museum of Vertebrate Zoology at UC Berkeley
Dusty McDonald
  • Point Of Contact
Arctos Database Programmer
University of Alaska Museum

Geographic Coverage

United States, primarily the Midwest region, and also expeditions to Alaska, Arizona, the Great Smoky Mountains, Louisiana, Florida, and South Dakota.

Bounding Coordinates South West [-90, -180], North East [90, 180]

Taxonomic Coverage

The ornithology collection represents 580 species. Most are species that occur in the Midwest, though many of these species are migrants that are also native to South America and Canada.

Class Aves

Temporal Coverage

Start Date 1834-01-01

Additional Metadata

Alternative Identifiers 16965647-4120-4e0b-aa57-1eeaf028606e