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| | Animal Life in the Yosemite (Birds) (Site not responding. Last check: 2007-11-02) |
 | | ALBERTA FOX SPARROW, Passerella iliaca altivagans Riley, late winter visitant: near El Portal (at 3800 feet), December 15, 1914; Pleasant Valley, December 4, 1915; six miles east of Coulterville, December 25, 1918, and January 20 and 27, 1919; Aspen Valley (6400 feet), October 14, 1915. |
 | | MARIPOSA FOX SPARROW, Passerella iliaca mariposae Swarth, summers in Canadian Zone on west slope of Sierra Nevada, from Hazel Green (5600 feet) to near Porcupine Flat (at 8100 feet) and Washburn Lake (at 7800 feet). |
 | | MONO FOX SPARROW, Passerella iliaca monoensis Grinnell and Storer, summers in Canadian Zone on east slope of Sierra Nevada, as at Mono Lake Post Office (6500 feet), Walker Lake (8000 feet), and on Parker Creek (at 7500 and 8600 feet). |
| www.cr.nps.gov /history/online_books/grinnell/birds139.htm (2605 words) |
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