sentences:  Males make high-pitched cricket-like chirps from beneath rocks and plants near swift-flowing streams, and stop calling at the slightest disturbance, making them very difficult to catch.Field observations from Panama Amphibian Rescue and Conservation Project operations in Cerro Brewster found the males were unusually prominent when sick with chytridiomycosis.Where extant, these frogs are probably more abundant than people realize, because of their highly secretive behavior.