Tyrant-flycatchers (Tyrannidae)

Rufous Casiornis (Casiornis rufus) - HBW 9, p. 428

French: Casiorne roux German: Zimtrücken-Röteltyrann Spanish: Burlisto Castaño

Taxonomy: Thamnophilus rufus Vieillot, 1816, Río Plata, Paraguay.
Considered by early authors to belong in the family Cotingidae, but now considered to be allied with the “myiarchine” flycatchers in genera Rhytipterna, Sirystes and Myiarchus. Sometimes treated as conspecific with C. fuscus. Monotypic.

Distribution: N & E Bolivia (SE from Beni and La Paz), SC Brazil (S Mato Grosso E to N Goiás and C Minas Gerais, S to Mato Grosso do Sul and São Paulo), Paraguay and N Argentina (S to Tucumán, E Chaco and N Corrientes); also small numbers N to NE Brazil (Maranhão, S Amapá) and W to SE Peru (N to Junín at R Ene) during austral winter.