DAUPHIN ISLAND, Ala. (AP) - The U.S. Fish & Wildlife Service says the bodies of more than 100 pelicans and other birds were found on Sand Island this week.
The Press-Register says biologists believe the birds were killed by the extreme cold.
Five birds were sent to the U.S. Geological Survey National Wildlife Health Center in Madison, Wis., for necropsies to pinpoint the cause of death.
The carcasses were located around the southern tip of Sand Island, a peninsula attached to Dauphin Island.
Photos provided by Fish & Wildlife officials show the birds heaped behind small sand dunes as if they died while huddling together to escape cold north winds.
All of the pelicans in the photographs appeared to be juvenile birds.