Heavy metals and eggshell coloration in House Sparrow (Passer domesticus) eggshells across the Eastern United States

Suzanne Hartley; Caren Cooper; Mariah Patton; Chris Hawn; Kathryn Jewell; Aubrey Wiggins; Memuna Khan; Daniel Hanley

doi:10.1371/journal.pone.0336122

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Open Access

Peer-reviewed

Research Article

Heavy metals and eggshell coloration in House Sparrow (Passer domesticus) eggshells across the Eastern United States

Suzanne Hartley ,

Roles Data curation, Formal analysis, Funding acquisition, Project administration, Supervision, Visualization, Writing – original draft, Writing – review & editing

* E-mail: suzyocom@gmail.com

Affiliation Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, North Carolina, United States of America

https://orcid.org/0000-0003-4646-7450

⨯
Caren Cooper,

Roles Conceptualization, Methodology, Project administration, Resources, Supervision, Writing – review & editing

Affiliations Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, North Carolina, United States of America, North Carolina Museum of Natural Sciences, Raleigh, North Carolina, United States of America
⨯
Mariah Patton,

Roles Data curation, Formal analysis, Methodology, Project administration, Supervision, Writing – review & editing

Affiliation Department of Biology, University of New Mexico, Albuquerque, New Mexico, United States of America
⨯
Chris Hawn,

Roles Methodology, Project administration, Supervision, Writing – review & editing

Affiliation North Carolina Environmental Justice Network, Raleigh, North Carolina, United States of America
⨯
Kathryn Jewell,

Roles Data curation, Funding acquisition

Affiliation Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, North Carolina, United States of America
⨯
Aubrey Wiggins,

Roles Data curation, Methodology, Validation

Affiliation North Carolina Museum of Natural Sciences, Raleigh, North Carolina, United States of America
⨯
Memuna Khan,

Roles Investigation, Resources

Affiliation Department of Biology, Ripon College, Ripon, Wisconsin, United States of America
⨯
Daniel Hanley

Roles Conceptualization, Formal analysis, Methodology, Writing – review & editing

Affiliation Department of Biology, George Mason University, Fairfax, Virginia, United States of America

https://orcid.org/0000-0003-0523-4335

⨯

Heavy metals and eggshell coloration in House Sparrow (Passer domesticus) eggshells across the Eastern United States

Suzanne Hartley,
Caren Cooper,
Mariah Patton,
Chris Hawn,
Kathryn Jewell,
Aubrey Wiggins,
Memuna Khan,
Daniel Hanley

Published: February 25, 2026
https://doi.org/10.1371/journal.pone.0336122

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