HBW lumped this taxon with T. leucurus as a “melanistic form of geographically limited distribution, based on apomorphic characters within the range of variation found in leucurus; otherwise the two are apparently inseparable, so conspecific treatment seems appropriate, with older name niger claiming priority”, adding that the race loehkeni “appears to be intermediate between leucurus and niger”. Specimen evidence in AMNH, however, suggests that loehkeni is much closer to leucurus than to present species, and that latter differs from all other taxa in the aggregate T. leucurus in having no rufous throatband (3), no pale moustache and belly (3), no white or buff in tail (2 from loehkeni; 3 from cervinicauda, rufigastra, leucurus and medianus). A similar conclusion seems to have been independently reached#R, but other evidence from Amapá suggests an interpretation that continues to place loehkeni with present species#R, while in N Pará individuals from the same locality attributed to T. niger but with divergent tail patterns suggest either that niger is more variable than previously thought (with a distinct morph or taxon in W of its range) or that some intergradation with T. leucurus is occurring in the area#R; clearly, further work is needed, and present arrangement may change as a result. Monotypic.
French Guiana and adjacent Brazil (Amapá and N Pará#R).
Food and feeding
Status and conservation
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