I never participate in those surveys. I'm afraid they leave the door open to getting spammed more than I do already. I also think remaining fairly anonymous online is a good idea. I'm glad you enjoy the surveys, though, raging vortex (BTW, I'm sorry if you are feeling alone today).

While the following site is from the Minnesota DNR, it demonstrates the individual songs of common birds in North America (especially the upper-Midwest):

Minnesota Bird Songs | Minnesota Conservation Volunteer | Minnesota DNR

What is your favorite bird? What is it that you find most appealing about this bird?