Merlin Bird Graphic

Merlin Bird ID

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    Thick-billed Murre Identification

    Adult Description

    • Medium-sized waterbird.
    • Black back and head, white underside.
    • Rather stout, pointed bill.
    • Throat white in nonbreeding plumage.

    Immature Description

    Similar to nonbreeding adult, but has slimmer, shorter bill and browner upperparts.
    Relative Size

    Relative Sizecrow sizedcrow-sized
    Measurements
    • Both Sexes
      • Length: 17.7 in (45 cm)
      • Weight: 26.5-52.2 oz (750-1481 g)