The northern long-eared bat, whose habitat extends into Hall County, has contributed to the latest delay of a draft environmental impact statement for the proposed Glades Reservoir. The draft EIS was scheduled for release next month, with a 45-day public comment period to follow. But that timeline has now been pushed back to July, according to Billy Birdwell, spokesman for the U.S. Army Corps of Engineers, Savannah District, while the U.S. Fish and Wildlife Service determines whether the bat should be placed on the endangered species list.