Phalacrocorax auritus (Lesson, 1831)
Main Group: Animal
Sublevel 1: Vertebrate
Sublevel 2: Bird
Species: Phalacrocorax auritus
STATUS IN NEW ENGLAND
Invasive, Pest, or Pathogen?: Yes
MA SWAP (2015) - SGCN
Feeding Type: Heterotroph
Double-crested cormorants may be considered pests and cause economic losses at aquaculture facilities. They may damage vegetation from their guano and by stripping vegetation for nesting materials. Cormorants compete with other waterfowl for nesting sites and may adversely affect habitat for other species. They may also damage property and cause health concerns (Sullivan et al. 2006).
Sullivan, K.L., P.D. Curtis, R.B. Chipman, and R.D. McCullough. 2006. The Double-crested Cormorant. Issues and Management. Cornell University Cooperative Extension. Published by Department of Natural Resources, Cornell University, Ithaca, New York.