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Supplemental Information

Supplemental Figure 1: Survey page 1

Survey page 1 includes discrete answer questions and had a completion rate of 98%.

DOI: 10.7287/peerj.preprints.2754v2/supp-1

Supplemental Figure 2: Survey page 2

Survey page 2 includes open ended questions/demographic information and had a 35% completion rate.

DOI: 10.7287/peerj.preprints.2754v2/supp-2

Additional Information

Competing Interests

Dustin J. Foote is an employee of Sylvan Heights Bird Park.

Author Contributions

Dustin J. Foote conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Matthew I. M. Louder conceived and designed the experiments, analyzed the data, contributed reagents/materials/analysis tools, prepared figures and/or tables, reviewed drafts of the paper.

Christopher N. Balakrishnan conceived and designed the experiments, analyzed the data, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Human Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

The Institutional Review Board Committee of East Carolina University approved this survey and project (UMCIRB 15-000342).

Data Deposition

The following information was supplied regarding data availability:

The raw data has been supplied as a supplementary file.

Funding

Project funding was provided by Society for the Study of Evolution, Raleigh-Durham Caged Bird Society, East Carolina University, Sylvan Heights Bird Park, and the National Science Foundation research grants nos. 1456524 and 1456612. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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