Micrastur sp.

Nascimento, Rafael S. & Silveira, Luís Fábio, 2024, Fossil and subfossil birds of Brazil, Zoologia (e 23079) 41, pp. 1-234 : 170

564. Micrastur sp.

Quaternary – MG

Micrastur sp. e majoribus ( M. melanoleucus ?) – Winge 1887: 34. Falconines [?] [in part] – Goeldi 1894: 76.

M. cfr. melanoleucus (?) – Lambrecht 1933: 751.

Micrastur semitorquatus – Brodkorb 1964: 296.

Micrastur semitorquatus – Mones 1986: 85.

Micrastur semitorquatus – Cuello 1988: 39.

Micrastur sp. – Nascimento and Silveira 2020: 495.

Winge (1887) reported the distal end of a humerus and the distal end of a tibiotarsus of unknown origin. They are larger than in Micrastur ruficollis , and the shape matches that of Micrastur semitorquatus . However, they are somewhat smaller than the specimen used for comparison, which is large and probably a female. The fossil material possibly belonged to a small male of that species. Winge also noted they differ considerably from Milvago and Caracara , and that no equivalent material from Herpetotheres was available for comparison.

565. Micrastur ruficollis (Vieillot)

Quaternary – MG

Micrastur ruficollis – Winge 1887: 34.

Falconines [?] [in part] – Goeldi 1894: 76.

Micrastur ruficollis – Lambrecht 1933: 751.

Micrastur ruficollis – Brodkorb 1964: 296.

Micrastur ruficollis – Mones 1986: 85.

Micrastur ruficollis – Cuello 1988: 39.

Micrastur ruficollis – Nascimento and Silveira 2020: 495.

Winge (1887) reported two left humeri from Lapa da

Escrivânia V.

Caracarinae d’Orbigny