Fox sparrow
Chapter 8: How Songs Change over Space and Time
Subchapter: Each species has its own song
From page 145 in the book.
The "red" fox sparrow:
♫590. June 13, 2017. Denali Highway, Paxson, Alaska. (5:55) (See also ♫282-290.) Recorded by Janet Grenzke.
The "sooty" fox sparrow:
♫591. Example 1. June 3, 2017. Beardslee Islands, Glacier Bay National Park, Alaska. (1:19) Recorded by Richard (Nels) Nelson.
♫592. Example 2. June 2, 2015. Sitka, Alaska. (1:35) Recorded by Richard (Nels) Nelson.
The "slate-colored" fox sparrow:
♫593. Example 1. Other species heard: northern waterthrush, black-capped chickadee, yellow warbler, sandhill crane. June 6, 2009. Big Hole National Battlefield, Wisdom, Montana. (9:21)
♫594. Example 2. A second fox sparrow sings in the background. June 9, 2009. Powell, Idaho. (6:36)
The "large-billed" fox sparrow:
♫595. Example 1. At 0:35, listen for what sounds like an imitation of an American kestrel (see ♫541). June 13, 2018. Antelope Valley, Sierra County, California. (3:40)
♫596. Example 2. June 13, 2018. Antelope Valley, Sierra County, California. (2:34)
♫597. Example 3. June 13, 2018. Antelope Valley, Sierra County,California. (2:09) Recorded by Janet Grenzke.
The green-tailed towhee, whose songs are often confused with those of a fox sparrow (by me, I admit):
♫598. June 13, 2018. Antelope Valley, Sierra County, California.(5:23)