American toad (Anaxyrus americanus).

A gruff amphibian with a musical trill.

Do you want to learn more bird songs, frog calls, and insect noises? Join Voice of the Wild every Friday to explore a new wild voice. We’re available on most podcast platforms, including Apple Podcasts, Spotify, and YouTube.

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

• American Toad call by Matthew D. Medler (ML514691)

Sources and more:

• https://dnr.illinois.gov/education/wildaboutpages/wildaboutfrogs/waftamericantoad.html
• https://www.umesc.usgs.gov/terrestrial/amphibians/armi/species/eastern_american_toad.html
• Wisconsin Citizen-Based Monitoring Network https://www.youtube.com/watch?v=XRN2kCesuS4

Eastern Gray Treefrog (Dryophytes versicolor).

The frog that sounds like a woodpecker.

Do you want to learn more bird songs, frog calls, and insect noises? Join Voice of the Wild every Friday to explore a new wild voice. We’re available on most podcast platforms, including Apple Podcasts, Spotify, and YouTube.

• Subscription links Here
• Subscribe to the Newsletter
• Listen online on our Homepage

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

• Red-bellied woodpecker call by Geoffrey A. Keller (ML507296)

The following USGS recordings were used in this episode:

• Eastern gray treefrog call by U.S. Geological Survey
• Cope's gray treefrog call by U.S. Geological Survey

Sources and more:

• https://dnr.illinois.gov/education/wildaboutpages/wildaboutfrogs/waftgraytreefrog.html
• https://www.umesc.usgs.gov/terrestrial/amphibians/armi/species/eastern_gray_treefrog.html
• https://www.umesc.usgs.gov/terrestrial/amphibians/armi/species/copes_gray_treefrog.html
• https://dnr.illinois.gov/education/edu-pages-main/a-f/edufrogtoad.html
• https://multimedia.illinois.gov/dnr/HDIGreyTree.mp4
• Wisconsin Citizen-Based Monitoring Network (https://www.youtube.com/watch?v=iLBehkuQgtk)

Warbling vireo (Vireo gilvus).

The plain vireo with a happy, jumbled song.

Do you want to learn more bird songs, frog calls, and insect noises? Join Voice of the Wild every Friday to explore a new wild voice. We’re available on most podcast platforms, including Apple Podcasts, Spotify, and YouTube.

• Subscription links Here
• Subscribe to the Newsletter
• Listen online on our Homepage

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

• Warbling vireo song by Geoffrey A. Keller (ML507826)
• Warbling vireo call by Randolph Little (ML507833)
• Warbling vireo second call by Geoffrey A. Keller (ML507828)
• Purple finch song by Gregory Budney (ML510176)

Sources and more:

• https://www.allaboutbirds.org/guide/Warbling_Vireo
• https://www.audubon.org/field-guide/bird/warbling-vireo
• Dobson, C., Kassenbaum, D., Oehmke, D., & Misewicz, M. (2023). Field guide to hotspots and birds in Illinois. Scissortail LLC.
• Godfrey, M. A., & Kaufman, Kenn. (Directors). (2004). National Audubon Society videoguide to the birds of North America [Video recording]. In Audubon videoguide to 505 birds of North America DVD I & DVD II (Fullscreen.). Godfrey-Stadin Productions.
• Peterson, R. T., & Peterson, V. M. (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.). Houghton Mifflin Company.
• Sibley, D. (2016). Sibley birds East: Field guide to birds of eastern North America (2nd ed.). Alfred A. Knopf.
• Walton, R. K., & Lawson, R. W. (1989). Birding by Ear: Eastern/Central [Compact Disc]. On Eastern/Central birding by ear. Houghton Mifflin Co.