Thousands of migrating birds, apparently mistaking parking lots for ponds, crashed into the ground throughout southern Utah this week. Thousands of the birds were killed [and] officials said they had rescued more than 2,000 as of Tuesday evening. Wildlife officials said the grebes ... were likely migrating toward Mexico and probably mistook the parking lot of a Cedar City Walmart and other areas as far south as Anderson's Junction for bodies of water. Thinking they were landing to rest atop a pond or lake, the grebes plummeted to the ground Monday night. The storm clouds over the top of the city lights made it look like a nice, flat body of water. All the conditions were right," Griffin said. "So the birds landed to rest, but ended up slamming into the pavement." Griffin said the event was unlike anything she had seen before in her professional career. "I've been here 15 years and this was the worst downing I've seen," she said. "Most of the downings I've seen have been pretty localized, but this was very widespread." Cedar City resident Stephen Gwin was among the volunteers who helped DWR officials gather the surviving birds. "I have never in my life encountered such a thing," he said. "I've heard of fish die-offs and other strange natural phenomenon, but I've never experienced one before. It was very strange."