Elaenia obscura sordida
J. T. Zimmer, 1941,
Franca, São Paulo, Brazil.
Hitherto treated as conspecific with E. obscura, although split long advocated on genetic grounds#R. Differs in its larger average size (ns); darker, duller, more olive upperparts (1); greyer throat, breast and flanks (1); and song, a simple “wee-krrr-ee-krrree” vs more complex, longer phrase (3), with longest note in it much shorter (not scored, as possibly correlated with phrase length), with lower minimum (2) and maximum (ns) frequency of the first whistle#R; habitat differences might be expected, given restriction of obscura to highlands (1700–3000 m) and of present species to land between sea-level and 2000 m#R. Monotypic.
Brazil (S Mato Grosso do Sul E to Minas Gerais, locally to C Bahia, and S to Rio de Janeiro and Rio Grande do Sul), E Paraguay, NE Argentina and extreme N Uruguay.
Food and feeding
Status and conservation
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