It would help if I knew where you lived and the type of habitat around your property..swamp, woods, urban, etc. I checked your MyPage but it hasn't been filled out yet.

If the bird is calling during the day, you could google the audio for an Eastern Phoebe

Yes, I guess it would help to know where we are, sorry! We live in a heavily forested part of California, in the Sierra Nevada foothills at 3000' elevation approx 50 miles West of Lake Tahoe. The bird only calls in the morning. He starts at daybreak, and ends maybe around 7-8:00 am? Some years we hear other birds like him, but this year, he is the only one. When he starts up, he does not immediately start with the "expedia" song. Rather, he begins with what I assume to be some sort of warm up. The expedia song is quite loud and high-pitched, I doubt he could produce it first thing.

If you say: "ex-PEE-dee-ah" as loud and as high-pitched as you can, that is exactly what it sounds like. I really hope someone can help identify this bird. Thanks!

How about a Hammond's Flycatcher

http://www.birdweb.org/birdweb/bird_details.aspx?id=285

Hi, I listened to the link, that isn't it. Perhaps I could record the bird's actual call and post it. Would that help? That bird's call is so distinctive, I just assumed the answer would be obvious. Thanks for any help!

It might be obvious to someone who lives in that area..maybe you could google a local birdwatcher club and ask someone who's experienced. Posting an audio file would probably do it as well. I assume it's not a Poor-will from your call description.