Rocky Mountain Power says two crows triggered an outage in mid-July that knocked out power to about 100,000 customers in eastern Idaho, western Wyoming and southern Montana.

Spokesman David Eskelsen tells the Post Register in a story on Thursday that an investigation found the crows caused an electrical fault that caused a 5-foot-tall device called a capacitor bank to catch fire at a substation in southwest Idaho near Shelley.

Eskelsen says a separate device that should have routed electricity around the burning capacitor bank malfunctioned and caused the entire substation to go offline.

Outlying customers lost power for about three hours once the outage started on July 19. The company says the crows were vaporized in the incident.

Rocky Mountain Power says upgrades have been made to the substation.