Preston T. Bertka-Ballard - Journal of Field Ornithology

Past issues of JFO may be accessible at the following sites:

2006 - 2021 at Wiley
2000 - 2005 at BioOne
Older JFO articles (1930-1999) are available for free download through the Searchable Ornithological
Research Archive (SORA)

First published in Journal of Field Ornithology in 2026

Top 10 Most Used Keywords

breeding behavior gynandromorph internal anatomy morphology mosaicism museum sex determination

Most Frequent Collaborators

Glaucia Del-Rio Marco A. Rego Mia J. Keriazes Sahas Barve Sophia H. Chen

1 published article

Sep 2026
A case of mosaic gynandromorphism in the Eastern Towhee (Pipilo erythrophthalmus)

Preston T. Bertka-Ballard, Mia J. Keriazes, Sophia H. Chen, Sahas Barve, Marco A. Rego, Glaucia Del-Rio