Bird Sounds Needed

In the painstaking process of researching and writing the Peterson Field Guide to Bird Sounds, I regularly find out about sounds that are not represented, or poorly represented, in the audio collections I have access to.  I have created a Xeno-Canto article with a preliminary list of the sounds I still need recordings of (or better recordings of).  The list is regularly updated as my research progresses.

If you record bird sounds, please take a look — and if you think you might be able to help me out, please drop me a line at npieplow@gmail.com.