The Crested Caracara (Caracara plancus) is one of the few members of the family Falconidae that construct their own nests (Morrison and Dwyer 2023). This species builds voluminous and conspicuous nests with a large variety of organic and inorganic materials, including branches and twigs; hairs from domestic animals such as cows, horses, or sheep; bones; grass; and even human-made materials such as plastics, fabric, wire, and twine from agricultural activities (Goldstein 2000, Salvador 2013, Mallet et al. 2020, Lima et al. 2022). The substrates that Crested Caracaras select to place their nests are also diverse, but are typically large trees (native or exotic) in forests, plantations, or isolated trees in fields/pastures. They also use shrubs or elevated human-made structures that allow them a good view, such as light towers (Saggese et al. 2021), road signs (Seipke 2012),...

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