Greetings! Only saw this bird from a large distance—warbler size/shape maybe—so just an audio file (ignore the goldfinch babbling in the background). I have heard it several times from the same tree in a densely brushy area, four lilting, clear notes rising in both pitch and volume, like a cross between an ovenbird and a prairie warbler. I cannot figure this out, please help! Thanks!
Birdsong.mp3