It is present on three of the eight islands, where it has historically been threatened by feral herbivores such as the Santa Cruz sheep and is making a gradual recovery.
In the mid-19th century, sheep that were most likely of the Merino, Rambouillet (French Merino), or Churro breed were brought to Santa Cruz Island.
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In December 1987, the Conservancy performed one of its first breed rescues when it removed a viable population of Santa Cruz sheep from Santa Cruz Island.