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MacGillivray's Warbler


IUCN Conservation Status: Least Concern


A furtive bird of forest edges and thickets, MacGillivray's Warbler breeds across much of the Pacific Northwest and the Rocky Mountains. In appearance, voice, habits, and winter range, it resembles its close relative, the Mourning Warbler, but the breeding ranges of the two species do not overlap.

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Typical Voice

Adult Description

  • Small songbird.
  • Slate-gray hood, covering head, nape, and throat.
  • White eye-arcs.
  • Olive-green back and wings.
  • Yellow chest and belly.

Male Description

Dark gray head, throat, and upper breast. Diffuse black markings on upper breast. Bold white crescents above and below eye. Olive back and wings. Yellow belly and flanks. Pinkish or brownish legs.

Female Description

Pale gray-olive head, throat and upper breast. Subtle white eye-arcs. Olive upperparts. Yellow underparts.

Immature Description

Similar to adult female, but may be duller with slightly paler throat.

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Field MarksHelp

  • Adult male

    MacGillivray's Warbler

    Adult male
  • Adult male

    MacGillivray's Warbler

    Adult male
  • Female/immature male

    MacGillivray's Warbler

    Female/immature male
    • © Christopher L. Wood, Texas

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