256 ZOOLOGY— HI HI)8. 



PASSERCriLUS SAVANNA (VVils.). 

 Savanna Nparrow. 



I learn from Mr. Aiken tliat duriny the migrations tlie ty|)ical savatnm of 

 the East occurs in nearly the same abundance as the variety ulaudinus, and 

 that during the past season he found the former breeding near I'ueblo, 

 Col. This is the first observation which gives this variety a sunmier habitat 

 so far t(i the west. 



rO(ECETES GKAMINI':(.TS(Gni.), var. CONFINIS, Uil. 

 Grass Finch; Bay-winju^t'd Biintin;;. 



Poocwlcs gramincm \iir. cmiiinix, liu., Birds N. A., 185.S, 448 (in text). — ('ouES, Key 

 N. A. Birds, 1872, 13G.— Mkrriam, U. S. Geol. Siuv. Terr., 1872, «8(».— 

 Yakkow & IJen.siiaw, Bej). Oru. Si)ec.s., 1872, ^Vlicclc r.s Expcd., 1874, 

 14._Uenshaw, An. Lye. Nat. Ilist. N. Y., xi, 1>74, 5.— M., An. List Birds 

 Utah, 1872, Wbceler's Exped., 1874, 44.— J(7., Bej). Orii. Specs., 187.$, 

 Wheeler's Exped., 1874, 01, SO, 111. — COUES, Am. Nat., viii, 1874, 002. — 

 Id., Birds Northwest, 1874, 129. 



Poocwtes confinis, Yarrow, Bep. Orii. Specs., 1871, Wheeler's Exped., 1874, 34. 



I'oocivtcs gmmineux, Bd., U. S. & Mex. Bound. Surv., ii, pt. ii, 1859, Birds, 15. — Henev, 

 Proc. Acad. Nat. Sci. Phila., 1859, 107 (New Mexico).— Coop. & Suckl., 

 P. B. B. Bep., xii, pt. ii, 180O, 200.— CouES, Proc. Acad. Nat. Sci. Phila., 

 18G8, 83. — Allen, Bull. Mas. Couip. Zool., 1872, 177. 



Zottotrichia {/niminca, \\ooD\l., iing\x'ii\t''ii Exp. Zufii & Col. Kiv., 1854, 84. — Newb., 

 P. R. B. Be|)., vi, 1857, 88.— Heerm., P. R. B. Rep., x, pt. ii, 1859, 47. 



This and the preceding species are perhaps the most common and gen- 

 erally distributed in the West of the sparrow tribe. They both frequent 

 much the same localities, but the Grass Finch is more constantly fttund on 

 the dry plains, and entirely away from the vicinity of water, and besides by 

 preference frequents the higher plateaus. 



Abundant in Southern Colorado. Nests on the ground among the 

 sage brush. Two nests wei"e obtained in South Park, Colorado, by Dr. Roth- 

 rock. Nest a slight structure of dried grasses, lined slightly with cottony 

 substances from plants. Eggs four or five in number, of a greenish-white 

 ground color, blotched all over with light brown and obsolete markings of 

 purple, with a few black streakings. 



I have observed no differences in lial)it in this variety as chstmguished 

 from the eastern form, and the songs of the two ai'c (|iiitc identical, not 



