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Ruhl, P. J., & Dunning, J. B. (2015). Morphometrics of Worm-eating Warblers in south-central Indiana: hatching year and after hatching year comparison. North American Bird Bander, 43, 81-84.
Ruhl, P. J., & Dunning, J. B. (2015). Confirmation of successful chestnut-sided warbler breeding in southern Indiana. Proceedings of the Indiana Academy of Science, 124, 38-42.