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Redpoll Identification

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The Four Keys to ID

  • Size & Shape

    A small songbird with a small head and small, pointed bill. The tail is short with a notch at the tip.

    Relative Size

    About the size of an American Goldfinch.

    Relative Sizesparrow or smallersparrow-sized or smaller

    Measurements
    • Both Sexes
      • Length: 4.5-5.5 in (11.5-14 cm)
      • Weight: 0.3-0.7 oz (9-20 g)

Regional Differences

With the lumping of Common, Lesser, and Hoary Redpolls into a single species in 2024, ornithologists recognize five Redpoll subspecies groups: "flammea," "rostrata/islandica," "Lesser," "exilipes," and "hornemanni." These five groups in turn are organized into two "forms," with "flammea," "rostrata/islandica," and "Lesser" clustered together as a "Common" form, and "exilipes" and "hornemanni" grouped together as a "Hoary" form. Extensive variation makes identification to group challenging at times. The "Common" form is generally darker, with the "Hoary" form paler. Within the "Common" form, "Lesser" individuals are the smallest, while "rostrata/islandica" birds are 50% heavier than "flammea" individuals. Birds in the "hornemanni" group are typically the palest and largest of all Redpolls—at 20 grams, they weigh about twice as much as "Lesser" individuals.