Male Dark-eyed Junco Sings While I Roof Rake

The principle song is a high, rapid trill that lasts for approximately two seconds and maintains pitch.  Similar in sound to a Chipping Sparrow or a Pine Warbler - others have described it as a ringing telephone.

Here's a link:

http://www.youtube.com/watch?v=vlJUsAl4YCA

Good birding,
Sue