Razorbill Identification

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Adult Description

  • Medium-sized waterbird.
  • Black back and head, white underside.
  • Stout, deep, round-tipped bill.
  • Throat white in nonbreeding plumage, with some white on face.

Immature Description

Similar to nonbreeding adult, but with shorter, shallower bill without white lines or grooves.
Relative Size

Relative Sizecrow sizedcrow-sized
Measurements
  • Both Sexes
    • Length: 16.9 in (43 cm)
    • Weight: 17.8-31.4 oz (505-890 g)
    • Wingspan: 24.8-26.8 in (63-68 cm)