Aves > Suliformes > Phalacrocoracidae > Nannopterum > Nannopterum auritum > Nannopterum auritum heuretus

subspecies: Nannopterum auritum heuretus (Double-crested Cormorant)

Annotation: Not recognized by del Hoyo et al. (1992) and Clements (2000), but included in treatments by BNA and Howard and Moore (2003).