Article Photos: Studying bats on Chouteau Island



<p>Field tech Brenna Long, 27, releases a big brown bat after recording the bat's weight, length, sex type for a study contracted by the U.S. Army Corp of Engineers on June 13, 2012 at Chouteau Island, Mo. Biologists are tracking the Indiana bat this summer at sites in Missouri and Illinois, hoping to gather information that they can use to help boost the endangered species. (AP Photo/St. Louis Post-Dispatch, J.B. Forbes) EDWARDSVILLE INTELLIGENCER OUT; THE ALTON TELEGRAPH OUT</p>

Field tech Brenna Long, 27, releases a big brown bat after recording the bat's weight, length, sex type for a study contracted by the U.S. Army Corp of Engineers on June 13, 2012 at Chouteau Island, Mo. Biologists are tracking the Indiana bat this summer at sites in Missouri and Illinois, hoping to gather information that they can use to help boost the endangered species. (AP Photo/St. Louis Post-Dispatch, J.B. Forbes) EDWARDSVILLE INTELLIGENCER OUT; THE ALTON TELEGRAPH OUT