Cayenne, French Guiana.
In past, often treated as conspecific with R. tenuirostris, R. obsoletus, R. elegans and R. crepitans; more recently only with R. obsoletus and R. crepitans; but recent study#R indicates that each of these taxa merits recognition as a separate species, based largely on molecular evidence supported by morphological details, with present species “relatively small, dull-breasted, stout-billed, and restricted to mangroves”; the differences are complex and require detailed evaluation both between and within current new species limits, but are provisionally accepted here in the light of genetic findings. Suggested to be conspecific with R. wetmorei, but ranges overlap with no known interbreeding. Seven subspecies recognized.
Also present between French Guiana and mouth of R Amazon, but race(s) unclear.
Food and feeding
Status and conservation
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