Gray Vireo illustration
Birdsong field guide

Gray Vireo

Vireo vicinior

The Gray Vireo is a plain, active songbird primarily found in the arid scrublands and pinyon-juniper woodlands of the Southwestern United States.

What it sounds like

A series of dry, scratchy, two-to-three-syllable phrases delivered in a hurried, questioning rhythm.

Reference call, compare with what you heard
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Rec. Matt Wistrand · United StatesCC BY-NC-SAXeno-canto

Field notes

  • Unlike most other vireos, this species frequently flicks its tail downward, mimicking the behavior of a gnatcatcher.
  • It is highly adapted to desert life and can meet its hydration needs through its diet without requiring standing water.
  • During the winter, its diet shifts significantly to favor the small, oily fruits of the elephant tree (Bursera microphylla).
  • Gray Vireos are known for their extreme persistence in singing, even during the hottest parts of the day when other birds are silent.
  • They are frequent hosts for the brood-parasitic Brown-headed Cowbird, which can pose a significant threat to their reproductive success.
Habitat
Arid slopes dominated by pinyon pine, juniper, oak scrub, and chaparral.
Range
Southwestern United States (California to Texas) and Northwestern Mexico.

Similar & commonly confused birds

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