Move cursor onto the image to toggle between Myotis californicus (cursor off) and Myotis yumanensis (cursor on) compiled reference views appended to the standard view Myotis yumanensis call on the left.

Compiled reference views allow a range of call varieties from a single species (or more) to be displayed in a single view. Compiled reference views are "virtual" sequences of many calls from different sources. With a library of compiled reference views, you can quickly compare an unkown call against the calls of a variety of candidate species.