674 U. S. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
The female differs in having the green of the head and back replaced by purplish chestnut ; 
the brownish yellow tints more hoary ; the feathers of the throat with a narrow central dusky 
streak. 
An allied species in South America, (4. ervythromelas,) according to Bonaparte, has the back 
purplish chestnut, instead of dark green. The European A. minuta differs in being larger; the 
upper wing coverts milk white, not brownish yellow ; the under wing coverts white, instead of 
olivaceous yellow. 
List of specimens. 
Catal. No. Sex. Locality. | When collected. “Whence obtained. Length. | Stretch | Wing. 
| of wings. | 
1546 GumaGarlislenshas—seesese— saan | May) 1811844. -.|8. 2 Baird) -.------22-- 13.56 | 17.64 4, 88 
ISAT Ma Gide tdow eee sete te iret. acta Oa Ea doses eee se ee 13.75 | 17.75 | 4.88 
1099 6 | Washington, D. C.....---- | June w843ee.cs—a\ eee ee dofloseseseoeeed|esaeeoee [eee nee Soom 
94300) |-a a= = ANS. gab oouctocSqESe bess | eee eee Capte ho peeeanta=smeets aa| setaemeets ipehteagtti hia 
94840 |pecees Mimbres to Rio Grande- ---- | wceetasoaes sane | Dre Hentyees oases ones psoeeces |acusccae|See ores 
9486 | oS Sacramento valley --------- lescadeeasocasosk Lieut. Williamson: = 2=—.|-2ss-.=|-2--5-22 |e eee 
BOTAURUS, Stephens. 
Botaurus, SrepuEeNs, Shaw’s Gen. Zool. XI, 1, 1819, 592. Type Ardea stellaris, L. 
Cu.—Bill moderate, scarcely longer than the head. Bill outlines gently convex, gonys ascending. Tarsi very short, less 
than the middle toe ; broadly scutellate. Inner lateral toe much longest. Claws all very long, acute, and nearly straight. 
Tail of ten feathers. No peculiar crest. Plumage loose, opaque, streaked. Sexes similar. 
But one species of this genus is found within the limits of the United States. 
BOTAURUS LENTIGINOSUS, Stephens. 
Bittern; Stake-driver, 
Ardea stellaris, Var. Forster, Phil. Trans. LXII, 1772, 410. 
Ardea slellaris, Var. 3, Botaurus freti-hudsonis, GME.IN, Syst. Nat. I, 1788, 635. 
Ardea lentiginosa, Montaau, Orn. Dict. Suppl. 1813.—Jenyns, Man. 191—Aup. Syn. 1839, 263.—Is. Birds Amer. 
VI, 1843, 94; pl. 365.—Sw. F. Bor. Am. II, 1831, 374. 
Bolaurus lentiginosus, SrerH, Shaw’s Gen. Zool. XI, 1819, 596. 
Ardea (Botaurus) lentiginosa, Nutr. Man. IJ, 1834, 60. 
Butor lentiginosus, Jarvine, Br. Birds, III, 147. 
Ardea minor, Witson, Am. Orn, VIII, 1814, 35 ; pl. Ixv.—Bown. Obs. 1825, 186.—Aup. Orn. Biog. IV, 1838, 296 ; 
pl. 337. 
Botaurus minor, Bonar. List, 1838.—Is. Consp. II, 1855, 136.—Gunp.acu, Cab. Journ. IV, 1856, 346. 
Ardea mokoho, Viritiot, Dict. —Wac er, Syst. Av. Ardea, No. 29. 
Sp. Cu.—Brownish yellow, finely mottled and varied with dark brown and brownish red. A broad black stripe on each side 
the neck, starting behind the ear. Length, 26.50 ; wing, 11.00 ; tarsus, 3.60; bill above, 2.75. 
Hab.—Entire continent of North America. 
Bill short, scarcely longer than the head. Gonys ascending, nearly straight. Culmen curved 
towards the tip. Tarsi short, less than the middle toe and claw, covered anteriorly for two- 
thirds the circumference by a single series of scutellae, and behind by a double series. Claws all 
