Red-throated Loon Identification

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The Four Keys to ID

  • Size & Shape

    A large ducklike seabird with long, sinuous neck, a thin but daggerlike bill, and long, narrow, pointed wings. The legs are set far back on the body and the feet trail behind the tail in flight.

    Relative Size

    Larger than a Red-breasted Merganser, smaller than a Common Loon.

    Relative Sizebetween crow and goosebetween crow and goose
    • Male
      • Length: 25.2-26.8 in (64-68 cm)
      • Weight: 44.1-86.8 oz (1250-2460 g)
      • Wingspan: 35.4-36.6 in (90-93 cm)
    • Female
      • Length: 22.1-25.4 in (56-64.4 cm)

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