1915 BIRDS OF CALIFORNIA 43 
River; irregular and less common visitant in midsummer through the San 
Diegan district (for records see Willett, Pac. Coast Avif. no. 7, 1912, p. 29) ; 
north casually to San Francisco Bay, Haywards, and ‘‘San Joaquin Valley”’ (J. 
G. Cooper, Auk, 1v, 1887, p. 90) ; noted also at Yermo, Mohave Desert, June 18 
(Lamb, Condor, xv, 1912, p. 34). No definite nesting record, the species prob- 
ably breeding wholly south of the Mexican line. 
114 (190) Botaurus lentiginosus (Montagu) 
AMERICAN BITTERN 
Synonyms—Botaurus minor; Ardea minor; Stake-driver. 
Status—Common resident interiorly, breeding in suitable localities in the 
interior valleys, and south as far as Alamitos, Los Angeles County (Robertson, 
Bull. Cooper Orn. Club, 1, 1899, p. 94). Most numerous and widely spread west 
of the Sierran divide in winter; probably absent at this season from northeast 
of the Sierra Nevada. 
115 (191) Ixobrychus exilis (Gmelin) 
Least BirtTERN 
Synonyms—Ardetta exilis; Ardea exilis; Ardeola exilis; Botaurus exilis. 
Status—Fairly common summer visitant locally north through the interior 
to the Sacramento Valley. Also occurs near the coast southerly. Only four defi- 
nite breeding records: Stockton (Belding, MS); Los Angeles County (J. Grin- 
nell, Bds. Los Angeles Co., 1898, p. 14; Willett, Pac. Coast Avif. no. 7, 1912, p 
30) ; San Jacinto Lake, Riverside County (Willett and Jay, Condor, xm, 1911, p. 
159) ; Escondido, San Diego County (Sharp, Condor, 1x, 1907, p. 91). Casual at 
Yermo, Mohave Desert, August 7 (Lamb, Condor, x1v, 1912, p. 35). 
116 (194, part) Ardea herodias hyperonca Oberholser 
CALIFORNIA GREAT BLUE HERON 
Synonyms—Ardea herodias, part; Ardea herodias oligista; Blue Crane; 
Great Blue Heron, part. 
Status—Abundant resident in suitable localities throughout the state chiefly 
west and north of the desert divides. Very many recorded breeding stations in 
the interior valleys, west to Redwood City, San Mateo County (Carriger and 
Pemberton, Condor, x, 1908, p. 78), north to Eagle Lake, Lassen County (Shel- 
don, Condor, 1x, 1907, p. 187), and south to San Diego (J. G. Cooper, Proe. U. 8. 
Nat. Mus., 1, 1880, p. 251). Common in winter also along the seacoast from the 
Oregon to the Mexican line, as also about all of the adjacent islands. Although 
individuals occur throughout the year around the Santa Barbara Islands (see 
Willett, Pac. Coast Avif. no. 7, 1912, p. 30), there is no good reason for the rec- 
ognition of a local insular race (see Swarth, Condor, xv, 1913, p. 50). 
117 (194, part) Ardea herodias treganzai Court 
Pauuip Great Buus Heron 
Synonyms—Ardea herodias, part; Great Blue Heron, part; Treganza Heron. 
