Authorities say a Mexican gray wolf has died in east-central Arizona's Apache Sitgreaves National Forest.
Arizona Game and Fish officials say a field team was trying to fit radio-telemetry collars on some Bluestem Pack wolves last weekend.
One female yearling was caught in a padded foot trap and moved into rocky terrain on the edge of a slope.
By the time crews could get to the wolf, it was no longer breathing and couldn't be revived.
Authorities say it's only the third such capture-related death in the 15-year history of the Mexican wolf reintroduction project in Arizona and New Mexico.
The Mexican gray wolf was added to the federal endangered species list in 1976 after it was nearly wiped out by government trapping and poisoning designed to help cattle ranchers.
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