A severe hailstorm killed more than 11,000 birds at Big Lake Wildlife Management Area west of Molt in Montana on August 11, 2019.

20 to 30 percent of the birds at the lake were killed or injured. Some of those still are alive will not survive their injuries.

More than 11,000 birds have been killed during an extreme hailstorm in Montana on August 11, 2019. Picture: Montana FWP