The Bewick Wrens 
Authorities.—A. K. Fisher ( Thryothorus bewickii bairdi), U. S. Dept. Agrie., 
N. Am. Fauna, no. 7, 1893, p. 134 (localities in s. e. Calif.); Oberholser, Proc. U. S. Nat. 
Mus., vol. xxi., 1898, p. 427 (monogr.; orig. desc.; spec, listed from Death Valley, 
White Mts., etc.) \Grinnell, Condor, vol. vi., 1904, p. 44 (Palm Springs, winter) \Grinnell, 
Univ. Calif. Pub. Zool., vol. xii., 1914, p. 209 (Lower Colorado Valley, winter; habits; 
crit.); Swarth, Proc. Calif. Acad. Sci., 4th ser., vol. vi., no. 4, 1916, p. 80, map (monogr.; 
distr. in Calif.). 
No. 134b San Diego Wren 
A. O. U. No. 7i9d. Thryomanes bewicki charienturus Oberholser. 
Description. — Adult (sexes alike) and Immature: Upperparts and auriculars, 
shading on sides of neck, warm brown (mummy brown); the exposed surfaces, greater 
coverts, tertials, upper tail-coverts, and rectrices finely barred with black or blackish; a 
sharply defined superciliary, white; underparts ashy gray, clearing almost to white on 
chin and throat, darkening to pale neutral gray on sides; distal portions of prolonged 
flank-feathers touched with brownish; under tail-coverts barred with black. Bill 
blackish above, lighter below; feet brownish. Juvenals are much like adult, but lighter 
above, and more or less spotted by dusky below. Av. length of adult males (skins): 120 
(4.72); wing 52.7 (2.07); tail 52.8 (2.08); bill 14 (.55); tarsus 19 (.75). Females average 
smaller. 
Recognition Marks. —Midget to warbler size; warm brown above, whitish to 
gray below; white superciliary line distinctive, especially as contrasted with House 
Wren ( Troglodytes a'edon). 
Range of T. b. charienturus. —Southern California, chiefly west of the desert 
divide, south to about Latitude 28°, Lower California. 
Distribution in California. —Common resident, chiefly in the Upper Sonoran 
zone of the San Diego district north, at least, to Santa Barbara and Mount Pinos; 
wandering down to adjacent portions of the Mohave and Colorado deserts in winter. 
Authorities. — Baird ( Thriothorus bewickii), Rep. Pac. R. R. Surv., vol. ix., 1858, 
p. 363 i part (Ft. Tejon); Oberholser, Proc. U. S. Nat. Mus., vol. xxi., 1898, p. 435 
(monogr.; orig. desc.; spec, listed from s. Calif, localities); Grinnell and Swarth, Univ. 
Calif. Pub. Zook, vol. x., 1913, p. 307 (San Jacinto Mts.); Swarth, Proc. Calif. Acad. 
Sci., 4th ser., vol. vi., no. 4, 1916, p. 74, map (monogr.; distr. in Calif.). 
No. 134c Catalina Island Wren 
A. O. U. No. 7i9d, part. Thryomanes bewicki catalinae Grinnell. 
Description. —Similar to T. b. charienturus, but “averaging darker dorsally 
(more sepia and not so umber brown), and with heavier bill and conspicuously and 
constantly larger feet” (Grinnell). 
Range of T. b. catalince. —Common resident on Santa Catalina Island. 
Authorities. — Oberholser ( Thryomanes bewickii charienturus), Proc. U. S. Nat. 
Mus., vol. xxi., 1898, p. 435, part (monogr.; comment upon spec, from Catalina Id.); 
Richardson, Condor, vol. x., 1908, p. 68 \ Grinnell, Univ. Calif. Pub. Zool., vol. v., 1910, 
p. 308 (orig. desc.; Avalon, Catalina Id.); Howell. Pac. Coast Avifauna, no. 12, 1917, 
p. 97, part (syn.; distr.; habits; crit.). 
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