California's Threatened Species

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Aquatic

Avian

  • Least Bell’s vireo (Vireo bellii pusillus)
    • Relatively small bird ranging from 4 - 5 inches long. Physical features include short rounded wings with a short / straight bill. Feathers are mostly grey along the back and wings with a pale breast and distinctive faint white eye ring[1].
  • Southwestern willow flycatcher (Empidonax traillii extimus)
    • Approximately 6 inches in length or smaller, including tail. Coloration consists of brownish-olive to grey-green body, pale olive breast, whitish throat, conspicuous light-colored wingbars, and completely pale lower mandible. Easily identified by liquid, sharp whistles or a dry sprrit vocalizations[2].

Terrestrial

References

  1. Least Bell's vireo (Vireo bellii pusillus)
  2. Southwestern willow flycatcher (Empidonax traillii extimus)