Chestnut-sided warbler (Setophaga pensylvanica).

A colorful warbler that’s “pleased to meet you.”

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The following Cornell Lab | Macaulay Library recordings were used in this episode:

• Chestnut-sided warbler song by Geoffrey A. Keller (ML509242)
• Chestnut-sided warbler song variation by Matthew D. Medler (ML509241)
• Chestnut-sided warbler call by Robert C. Stein and Eugene Morton (ML509245)
• Yellow warbler song by Mike Andersen (ML509228)

Sources and more:

• https://www.allaboutbirds.org/guide/Chestnut-sided_Warbler
• https://www.audubon.org/field-guide/bird/chestnut-sided-warbler
• Dobson C, Kassenbaum D, Oehmke D, et al. 2023. Field guide to hotspots and birds in Illinois. Champaign-Urbana: Scissortail LLC.
• National Audubon Society videoguide to the birds of North America. 2004. Fullscreen. Carrboro, NC: Godfrey-Stadin Productions.
• Peterson RT, Peterson VM. 1980. A field guide to the birds : a completely new guide to all the birds of eastern and central North America. Fourth edition, completely revised and enlarged. Boston: Houghton Mifflin Company (The Peterson field guide series ; 1).
• Sibley D. 2016. Sibley birds East : field guide to birds of eastern North America. Second edition. New York: Alfred A. Knopf (Field guide to birds of eastern North America).
• Stokes DW, Stokes LQ. 2004. Stokes Field Guide to Warblers. 2nd ed. New York: Little, Brown (Stokes field guides).