Guadalupe Junco Junco insularis

  • © Jaime Rojo

It long has been known that Guadalupe Island, off the west coast of Mexico, was occupied by a form of junco, but the taxonomic status of this endemic taxon has been uncertain. Although it originally was described as a species, Guadalupe Junco was classified for decades as a subspecies of the widespread Dark-eyed Junco (Junco hyemalis); and, indeed, Guadalupe Junco somewhat resembles a dull "Pink-sided Junco" (Junco hyemalis mearnsi). Recent genetic evidence, however, indicates that Guadalupe Junco indeed merits species rank; it also has a distinctive song, and also differs by its longer bill, which is further accentuated by its smaller body size. Formerly common, Guadalupe Junco currently is considered to be seriously endangered, mostly due to predation from feral cats and rats, and habitat loss, primarily driven by grazing.

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© Steve N. G. Howell

  • Year-round
  • Migration
  • Breeding
  • Non-Breeding

Recommended Citation

Guadalupe Junco (Junco insularis), In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. retrieved from Neotropical Birds Online: