Hi everyone. I just joined WhatBird a few minutes ago in the hopes that someone would identify this bird that I've been hearing all summer. It stays in the trees out of sight and sings morning and late afternoon. I hope I'm not abusing the website by trying to put a wave file where a picture belongs, so just in case, here is the URL again
www.tagnet.org/macedonia/eb/unknown_bird.wav I am a few miles west of Philadelphia. The audio is about 30 seconds and has the call 5 times. If you know this bird at all, you'll probably recognize it in the first couple of seconds. Thanks for the help.