Great Cormorant Identification

Adult Description

  • Large, dark water bird.
  • Long body and long neck.
  • Medium-sized bill is blunt or hooked at tip.
  • White patch at base of bill.

Immature Description

Juvenile with dirty brown neck and white belly; variable, may be uniformly mottled. Shows only hint of white face patch. Skin at base of bill yellowish.
Relative Size

Relative Sizebetween crow and goosebetween crow and goose
Measurements
  • Both Sexes
    • Length: 33.1-35.4 in (84-90 cm)
    • Weight: 91.7-130.5 oz (2600-3700 g)
    • Wingspan: 51.2-63.0 in (130-160 cm)