Family New World Blackbirds (Icteridae)

Least Concern

Yellow-rumped Marshbird (Pseudoleistes guirahuro)


French: Carouge guirahuro German: Gelbbürzelstärling Spanish: Tordo güirahuró

Agelaius guirahuro


, 1819,

Paraguay and Río de la Plata




SE Brazil (S from S Goiás, Minas Gerais and Rio de Janeiro) S to E Paraguay, NE Argentina (Corrientes and N Santa Fe, rarely N Entre Ríos) and N Uruguay.

Descriptive notes

Male average 25·5 cm and 91·2 g; female 81·9 g. Head to upper breast blackish-brown, upperparts brown, except for rich yellow rump; most of wing and tail... read more


Song a mix of whistles, warbles, slurs and nasal buzzes, usually slower, less screechy and more... read more


Marshes and adjoining uplands, bogs and wet grasslands; also humid or flooded savannas, provided... read more

Food and feeding

Insects and other arthropods, small vertebrates, and some seeds. Stomach contents in Paraguay included bugs (Hemiptera) and beetles (... read more


Season Oct–Jan in Paraguay and Oct–Nov in Brazil (Rio Grande do Sul). Nests solitarily. Co-operative breeder, with up to six helpers at... read more



Status and conservation

Not globally threatened. Fairly common in most of range; in Argentina common only in N Corrientes and S Misiones; numerous in E Paraguay, but rarer in the Chaco. A single old... read more

Recommended citation

Fraga, R. (2020). Yellow-rumped Marshbird (Pseudoleistes guirahuro). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 26 February 2020).