Whitney et al., 2013,
municipality of Humaitá on the BR-230 (“Transamazônica”) highway (07°47’22” S, 62°23’32” W), at about 70 m elevation, Amazonas, Brazil.
Newly described species#R, in plumage identical to its closest relative Z. villarejoi but differing in its rather smaller size (effect size for male wing −2.43, although sample size small; 2); call clearly with lower minimum frequency (ns); and song (based on published evidence#R) at least 1 kHz lower in minimum frequency (3), with frequency range much larger (2). Described as interfluvial campina specialist#R, but this appears to apply also to Z. villarejoi. Acceptance of species status here depends on fortification of evidence concerning morphometric differences, and on chance to assess loudsong evidence when recordings available. Monotypic.
C Amazonian Brazil (R Madeira to R Aripuanã and R Madeirinha, in SE Amazonas; possibly also in adjacent NE Rondônia and NW Mato Grosso).
Food and feeding
Status and conservation
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