Northern harrier (Circus hudsonius).
The owl-faced hawk.
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The following Cornell Lab | Macaulay Library recordings were used in this episode:
- Northern harrier call by Cleveland P. Grant and William W. H. Gunn (ML505954)
- Northern harrier screech call by Charles Duncan (ML505956)
Sources and more:
- https://www.allaboutbirds.org/guide/Northern_Harrier
- https://www.audubon.org/field-guide/bird/northern-harrier
- Dobson, C., Kassenbaum, D., Oehmke, D., & Misewicz, M. (2023). Field guide to hotspots and birds in Illinois. Scissortail LLC.
- 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.
Episode 87