=581j. Dakota Song Sparrow= (_M. c. juddi_). Similar to No. 581, but above paler, especially line over eye and sides of neck; white below clearer; interscapulars with black center broader, reddish brown portions narrower; dark markings on breast restricted and more sharply defined. (Bishop.)

Range.--"Turtle Mountains and vicinity, North Dakota." (A.O.U.)

DESERT SONG SPARROWS.

[Ill.u.s.tration: 581a.]

=581a. Desert Song Sparrow= (_Melospiza cinerea fallax_). W. 2.5.

Above reddish brown and gray; below white with _reddish brown_ streaks; usually _no black_ in plumage.

Range.--Lower Sonoran district of southwest Arizona, southern Nevada, southeast California and northwest Lower California and Sonora.

(Ridgw.)

=581g. Brown Song Sparrow= (_M. c. rivularis_). Similar to No. 581a, but larger, W. 2.7, with longer, more slender and more compressed bill; still less strongly contrasted markings, and duller, less rufescent colors. (Ridgw.)

Range.--Mountain districts of southern Lower California. (Ridgw.)

CALIFORNIA SONG SPARROWS.

[Ill.u.s.tration: 581c.]

=581c. Heermann Song Sparrow= (_Melospiza cinerea heermanni_). L. 6.5; W. 2.5. _Ads._ Above _chestnut_ olive-gray with usually distinct black streaks; tail _without_ a decided rufous tinge; black streaks below not conspicuously bordered by rufous.

Range.--Central valleys of California including lower levels of Sacramento and San Joaquin basins. (Ridgw.)

[Ill.u.s.tration: 581f.]

CALIFORNIA SONG SPARROWS.

=581m. San Diego Sparrow= (_M. c. cooperi_). Similar to No. 581c, but slightly smaller, W. 2.4, much lighter and grayer.

Range.--Southern coast district of California north to Monterey Bay, east to Ft. Tejon, San Bernardino, etc., and north Pacific coast district of Lower California south to San Quentin Bay. (Ridgw.)

=581d. Samuels Song Sparrow= (_M. c. samuelis_). Similar to No. 581c, but smaller, W. 2.4, bill more slender.

Range.--Coast slope of central California (except salt marshes of San Francis...o...b..y), from Santa Cruz County to Humboldt County, north, at least in winter, to Humboldt Bay. (Ridgw.)

=581l. Alameda Song Sparrow= (_M. c. pusillula_). Similar to No. 581a, but smaller, W. 2.3, less rusty, underparts more heavily streaked, usually more or less suffused with _yellowish_.

Range.--Salt marshes of San Francis...o...b..y, California. (Ridgw.)

=581i. San Clemente Song Sparrow= (_M. c. clementae_). Similar to No. 581m, but larger and grayer.

Range.--San Clemente, San Miguel, and Santa Rosa Islands, Santa Barbara Group, California; Coronados Islands, Lower California.

(Ridgw.)

=581h. Santa Barbara Song Sparrow= (_M. c. graminea_). Similar to No.

581i, but much smaller, W. 2.4.

Range.--Santa Barbara Islands, California mainland in winter.

NORTHWEST COAST SONG SPARROWS.

=581e. Rusty Song Sparrow= (_M. c. morphna_). W. 2.7. _Ads._ Above without clear gray and _not_ distinctly streaked; prevailing color dark reddish brown; below _heavily_ streaked with same.

Range.--Northwest coast region, Oregon to British Columbia; south in winter to southern California.

=581f. Sooty Song Sparrow= (_M. c. rufina_). Similar to No. 581e, but larger, W. 2.9, more sooty above and below, underparts more heavily streaked.

Range.--Pacific coast region from British Columbia north to southern Alaska.

=581n. Yukutat Song Sparrow= (_M. c. caurina_). Similar to No. 581f, bill longer and more slender, color grayer.

Range.--Coast of Mt. St. Elias district of Alaska, from Yakutat Bay to Lituya Bay.

=581o. Kenai Song Sparrow= (_M. c. kenaiensis_). Similar to No. 582, but smaller, W. 3, plumage darker, more sooty, less rufous.

Range.--Coast of Kenai Peninsula, Alaska, from east side of Cook Inlet to Prince William Sound. (Ridgw.)

=581.1. Kadiak Island Song Sparrow= (_M. c. insignis_). Similar to No. 581o, but larger, W. 3.2, bill longer, color grayer.

Range.--Kadiak Island and opposite coast of Alaska. (Ridgw.)

[Ill.u.s.tration: 582.]

=582. Aleutian Song Sparrow= (_Melospiza cinerea_). Similar to No.

581.1, but larger and grayer; largest and grayest bird of group; L. 8; W. 3.4.

Range.--"Western portion of Alaska Peninsula (Stepovak Bay, opposite Shumagin Islands), Shumagin Islands, and Aleutian Islands, from Unalaska to Atka, Adak, and Attu." (Ridgw.)

[Ill.u.s.tration: 585.]

=585. Fox Sparrow= (_Pa.s.serella iliaca_). L. 7.2. Back _streaked_, gray and reddish brown; tail and spots below bright reddish brown.