I’ve been birding for a few years, and as I get ready for the spring migration in the Northern Hemisphere, I’ve been studying up my bird songs and calls. As I’ve been doing this, I’ve started thinking about different resources that would help me (and others) in the journey to learn. One hypothetical resource that keeps coming to mind is some kind of organizational system for looking at bird songs and calls based on their similarities. Instead of being grouped based on Genus, why not organized based on if the song is a trill, or metallic, or fluted? That way when encountering a song like that of a Pine Warbler, I can quickly look to see ah yes, it also might have been a Dark-Eyed Junco, or Chipping Sparrow.
Does anyone know if this sort of resource is available? If not, I might go about seeing if I have someway to create it during this time of COVID quarantine.