Taxonomic status very unclear; tentatively treated as distinct species, closely related to C. marginatus, C. alexandrinus, C. dealbatus, C. nivosus and C. ruficapillus, and all have on occasion been considered conspecific. Various authors associate it with different species; most often treated as race of C. alexandrinus; alternatively linked with C. ruficapillus or even with C. peronii, although appears to be quite different structurally from latter; very poorly known, and much more research needed. Monotypic.
Food and feeding
Status and conservation
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