A golden eagle that collided with a semitrailer truck in Summit County on Tuesday is on the mend, a wildlife rehabilitation center said.

The bird was flying over Interstate 80 when it crashed through the westbound truck's windshield and into the cab near Echo, said Utah Highway Patrol spokesman Cameron Roden.

The eagle suffered severe head trauma and vision loss in one eye, said Dalyn Erickson, executive director of Wildlife Rehabilitation Center of Northern Utah, where the bird is recovering.

The male is at least 5 years old, judging by the maturity of his tail feathers, Erickson said. Younger eagles have a white base on their tails that fades as they get older.

He is still being medicated and treated three times a day in a secluded enclosure and has shown signs of regaining vision. If the rehabilitation goes well, he could be released back to the wild in three to four weeks, Erickson said.

"We are hoping for a full recovery," she said.

Golden eagles live up to 30 years in the wild and are fairly common in Utah. Two or three golden eagles hurt by cars come to the center each year, Erickson said. Some large birds of prey are hit after they gorge themselves on road kill and are too full to fly quickly, though that isn't what happened in this case.