Thunder Bay Hydro says it has restored power to most customers after a "large bird" came into contact with equipment at the Balsam St. substation.
Spokesperson Eileen Dias said the bird, likely a raven, created a fault that initially knocked out power for 17,000 customers at about 10 a.m. Monday.
"We were able to do some switching and isolate it down to 2,000 [customers] quite quickly," said Dias. "We're working on the station to repair the damage."
As of 2 p.m. Monday, there were 70 customers still without electricity in the Hudson and Huron Avenue area, between Balsam and Shuniah Streets, Dias said. There was no word yet what time power might be restored to those homes.
The outage affected much of Thunder Bay's north side, as well as the surrounding areas of Sibley, MacGregor, Fowler, Shuniah, Gorham and Jacques.