What's the bird in the original opening to Twin Peaks?

What's the bird in the original intro to Twin Peaks? We got a little distracted today arguing about the ID of the bird in the original Twin Peaks introduction. It's the first image one sees when the show begins. One source seemed to think it was a Bewick's Wren, which seemed way off to us. We're going with female Varied Thrush. And yes, looking at the range map, it is native to the Pacific Northwest.

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