Harpagus diodon (Temminck, 1823)

Vitorino, Breno Dias, Vilas Boas da Frota, Angélica, Ikeda Castrillon, Solange Kimie & Nunes, Josué Ribeiro da Silva, 2018, Birds of Estação Ecológica da Serra das Araras, state of Mato Grosso, Brazil: additions and review, Check List 14 (5), pp. 893-922 : 903

Harpagus diodon (Temminck, 1823)

We recorded this species in September 2016, ascending on a thermal, in Area A. Identified by its rufous thighs

and upper wing coverts and light gray breast, which differentiates it from H. bidentatus .