Sometimes considered conspecific with the Yellow-cheeked Becard (Pachyramphus xanthogenys) of the east slope of the Andes, the attractively plumaged Green-backed Becard possesses a relatively wide range over much of eastern South America. However, it is rarely common. Both sexes are relatively distinctive, sharing the eponymous green upperparts, but males having a black cap and gray face, with a yellow breast in the more southerly of the two races, whilst females have an olive cap, gray face, and rufous wing coverts, again with yellow on the breast in the southern taxon. The Green-backed Becard is usually observed in pairs, and the species’ large, globular nest sited relatively high in a tree can draw the observer’s attention as easily as the birds themselves. [Source: http://neotropical.birds.cornell.edu/portal/species/overview?p_p_spp=485996].