Ash Throated vs. Great Crested Flycatcher (1 Viewer)

Hi, I wanted to get some confirmation for a finding. I had an observation (seen only, no photo) , June, Orange County, CA near the coast. The frequent "big flycatcher" other then Phoebes and Kingbirds around here is the Ash-Throated Flycatcher. However, this bird was different. I only got a very brief glimpse, but an excellent hearing of its call. The call was very much like that found for the GCF on Allaboutbirds and Whatbird. It has that almost woodpecker-like repeating note call. Check it out and you'll know what I mean.

Thus the dilemma. GCF is primarily Eastern. We do get reasonably regular reports of this make and model in So Cal but I want to be more sure.

While I've seen and heard plenty of ATFs, this was nothing like that in sound. But I've seen references to ATF calls being "highly variable", etc.

Is there another flycatcher which has a call similar to the GCF? Was this just an ATF trying to confound me?

Thanks.

Maybe a shorter version of the question. Here is the Great-crested link: Great-created Flycatcher.

Is it possible for the Ash-throated to make a sound similar to this bird (the fast/repetitive part)?

When I saw this ash-throated, the second I heard it, I thought - that's not right. But is it? Like I said, the sound was very similar to the link above. So would that likely preclude ash-throated? I realize there is not an absolute answer and that my identification for Great-crested is unlikely. But I will appreciate any thoughts.

Thanks guys.

It's been seen in CA before, though rarely. The general consesus is summed up by this commenet:

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Myiarchus flycatchers are notoriously difficult to identify; the only difference between the Ash-throat and the Great-crested is that the Ash-throat is duller, especially in the rusty areas.
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Silverwolf said:

Myiarchus flycatchers are notoriously difficult to identify; the only difference between the Ash-throat and the Great-crested is that the Ash-throat is duller, especially in the rusty areas.

Click to expand...

Yes, but much duller. I saw a Great Crested recently in Nevada (where it’s a very rare bird) & could tell at a glance that is wasn’t an Ash-throated (or Brown-crested).

Here are some photos:
http://www.flickr.com/photos/organize/?start_tab=one_set72157602221849079
http://www.flickr.com/photos/organize/?start_tab=one_set72157602221849079
http://www.flickr.com/photos/organize/?start_tab=one_set72157602221849079