Sick Birds In Ironton

18 loons and grebes from the Serpent Lake Sanitary District near Ironton have been taken to the Garrison Animal Hospital and investigators are trying to figure out why. The birds were found near the wastewater treatment ponds in Ironton. Some can't fly. Others are having a hard time swimming. Two of the grebes have died. DNR and Minnesota Pollution Control officials are investigating. Samples have been taken from the treatment ponds but officials say it will take five to seven days to get test results back.