Indiana Department of Natural Resources biologists John Castrale and Amy Kearns observe a peregrine falcon as it flies above its nesting box on a stack at the Duke Energy Gallagher Station plant in New Albany on Wednesday morning. The Indiana DNR maintains the nesting box, and a pair of adults recently hatched three chicks, which the biologists brought down to examine and band for identification. The location on the stack is similar to the cliffs where they instinctually nest in the wild. Peregrine falcons are endangered in the state of Indiana, but they are no longer on the federal list of threatened and endangered species in the United States.