Imperial Cormorant Phalacrocorax atriceps

  • Order: Suliformes
  • Family: Phalacrocoracidae
  • Polytypic: 2 subspecies
  • Authors: Agustina Gómez Laich
Sections

Systematics

Geographic Variation

Polymorphic

In some individuals the demarcation line separating black and white of the head is located lower on the cheeks. White alar stripes are also sometimes present. Individuals with these characteristics are considered by some authors as a subspecies (Phalacrocorax atriceps albiventer) (Dorst and Mougin 1979) or as a separate species (Blake 1977).

Related Species

The species limits of this group of birds remain controversial.

Recommended Citation

Gómez Laich, A. (2012). Imperial Cormorant (Phalacrocorax atriceps), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/nb.impcor1.01