Double-crested Cormorant
Nannopterum auritum
Cormorants and Shags (Phalacrocoracidae) · Suliformes (Suliformes)
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Spesso confuso con
Nei quiz i giocatori confondono più spesso Double-crested Cormorant con questi uccelli: o questa specie è stata scelta per errore, o il contrario.
| Specie | Confusioni |
|---|---|
| Cormorano Phalacrocorax carbo | 12 |
| Marangone dal ciuffo Gulosus aristotelis | 10 |
| Neotropic Cormorant Nannopterum brasilianum | 6 |
| Pelagic Cormorant Urile pelagicus | 3 |
| Anhinga Anhinga anhinga | 2 |
Famiglia
Phalacrocoracidae is a family of approximately 40 species of aquatic birds found worldwide and commonly known as cormorants and shags. Several different classifications of the family have been proposed, but in 2021 the International Ornithologists' Union (IOU) adopted a consensus taxonomy of seven genera. The great cormorant (Phalacrocorax carbo) and the common shag (Gulosus aristotelis) are the only two species of the family commonly encountered in Britain and Ireland.
Ordine
The order Suliformes (, dubbed "Phalacrocoraciformes" by Christidis & Boles 2008) is an order of birds that includes gannets, boobies, frigatebirds, cormorants and darters. The order is recognised by the International Ornithologist's Union. Regarding the recent evidence that the traditional Pelecaniformes is polyphyletic, it has been suggested that the group be divided to reflect the true evolutionary relationships; a 2017 study indicated that they are most closely related to Otidiformes (bustards) and Ciconiiformes (storks).