Spectrograms are a immensely helpful tools when it comes to bird song analysis, with many uses ranging from identification, taxonomy, to comparative analysis between similar species. Such 2-dimensional representations of sound are widely used in ornithology. A simple recording that can be done with any kind of device can be uploaded and be worked with a tool such as Raven Viewer on a computer. Raven Viewer, however, is currently in a rocky stage of support and it seems will until further notice be disbanded by the creators. However there are many alternative ways to obtain and work with spectrograms such as websites like Spectrum Analyzer. Once on the website, one can upload a file into the in-browser tool and instantly have a spectrogram generated for the sound file.