King Eider Identification

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The Four Keys to ID

  • Size & Shape

    A heavyset duck with short, thick neck, rather large rounded head, and fairly short but heavy bill. Adult males have a large plate above the bill that creates a bulge in the forehead. Females have a graceful sloping transition between forehead and bill.

    Relative Size

    Larger than a Surf Scoter, smaller than a Common Eider.

    Relative Sizebetween crow and goosebetween crow and goose
    Measurements
    • Both Sexes
      • Length: 18.5-25.2 in (47-64 cm)
      • Weight: 42.3-74.1 oz (1200-2100 g)