The closest one I know is Olive-backed Pipit. One can compare flight calls on
the links below. Red-throated is certainly distinctive and the expected vagrant
pipit to be found on the West Coast. But there are records of Olive-backed in
California and Nevada. I have heard both and have confused them.
Red-throated Pipit: http://www.xeno-canto.org/283751
<http://www.xeno-canto.org/283751>
Olive-backed Pipit: http://www.xeno-canto.org/285782
<http://www.xeno-canto.org/285782>
There are recordings of both that sound a bit thinner — am not sure if it is
because the birds have a thinner call or if is due to being more distant when
recorded.
Shawneen Finnegan
Portland, OR
