C. Chubb, 1914,
Abary River, Guyana.
Very recently proposed for separation from T. ignobilis based on strong molecular and relatively weak plumage differences#R. This accepted here, given (vs all other taxa in T. ignobilis as constituted in HBW, including T. debilis) purer grey underparts with relatively little white (narrow strip on central belly, and on vent) (2); stronger, clearer throat pattern (1); use of white-sand (campina) forest (1); highly dynamic song with accelerations (allow 2) and repetitions (allow 2) unlike in other taxa#R. Overlooked race cururuensis (EC Amazonian Brazil) recently listed for the species#R but apparently undiagnosable#R. Monotypic.
Campina and cerrado areas of extreme E Colombia, S Venezuela, Guyana, Suriname and NW Brazil (N & S of R Amazon)#R.
Food and feeding
Status and conservation
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