Alternative names: Crowned Eagle, Crowned Solitary Eagle
- Buteogallus coronatus
73–85 cm (28¾-33½ in)
- Dull slate grey
- Darker wings
- Prominent bushy crest
- White band and white tip to dark tail
- Yellow cere
- Yellow legs
- Brown upperparts
- Cream below, cream head and throat
- Dark post-ocular stripe
- Upper breast mottled brown
- Mottled lower belly
Classified as endangered in the IUCN Red List due to its small, fragmented population, and population decline due to habitat loss and hunting (BirdLife International, 2008).
Lowland, seasonally dry palm savanna, sparse woodland and shrubland; chaco; and campo cerrado.
The diet includes reptiles, small mammals, fish, monkeys and sometimes birds.
It builds a large platform nest. A single egg is laid.
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2018. The eBird/Clements checklist of birds of the world: v2018. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- BirdLife International
- SACC proposal] for taxonomy including this species
- BirdForum Opus contributors. (2021) Chaco Eagle. In: BirdForum, the forum for wild birds and birding. Retrieved 11 May 2021 from https://www.birdforum.net/wiki/Chaco_Eagle