578 ORNIXnOLOGY. 



Lint of upecimens. 



33G, ijiti:; Carson City, Nevada, November 29, 1.SG7. 17— STJ— ll'^— 10^— J— 

 ]| — 7.] — 44. Weight, li i>ounds. liill, very pure bluish-wbite, sbadiiig terminally into 

 bluish slaty, the point black ; cere, rictus, and bare orbital region, greenish-white ; iris, 

 vivid Vandyke brown ; tarsi and toes, very pale yellowish, with a tinge of verdigris- 

 green. 



Falco colu.mbarius. 



Piifcon Hawk; American ITIorliii. 



Falco cohtmhurius, LiNN., Syst. Xat., I, 1700, 128. — CouES, Key, 1S72, 214 ; Check 

 List, 1873, No. 314; Birds N.W., 1871, 345.— Uensiiaw, 187.5,412. — Coopeij, 

 • .Orn, Cal., I, 1870, 400. 



nypntriorchis coliimhnriiis, GuAY, Genera of Birds, 1.S4-. — Raird, Cat. N. Am. 

 Birds, 1859, No. 7. 



Falco (Ilypotriorchiit) columbarius, Cassin, in Baird's Birds N. Am., 1858, 9. 



Falco lyJC-salon) lilho/alco var. columbarius, lIiDGW., Pr. Boston Soc, N. EI., 1873, 

 40; in B. B. & 11., Uist. N. Am. Birds, III, 1874, 144. 



Tlii.s little Falcon was seen on but three or four occasions. The speci- 

 men in the collection was shot just after it had made an unsuccessful 

 assault on a flock of black-birds {Scohcoi)hagus cyanocejjhahis) which were 

 feeding' on the ground iu a corral. Its success was no doubt thwarted by 

 the opening of the door of the house near by, for it flew away frightened, 

 but fortunately came in our direction, and alighted upon a fence-post within 



easy gunshot range. 



List of specimens. 

 291, ? a<l.; Truckee .Meadows, Nevada, November 18, 1807. 11|— 24— 7^— O-;*- 

 y'g — 1^ — 5^ — 31. Terminal portion of the bill, deep slate-black, basal half very pale 

 whitish-blue, with a yellowish wash toward the rictus; cere ami ritttus, lii:ht greenish- 

 yellow ; eyelids, bright gamboge yellow, bare orbital region more citreous ; iri-;, bright 

 Vandyke-brown ; tarsi and toes, deep gamboge-yellow ; claws, jet-black. 



Falco srAiivERius. 



"Sparrow lla\%'k ;" American Keslril. 



Falco sparverius, Linn., Syst. Nat., I, 1706, 128. — Coopee, Orn. Cal., I, 1870, 



402.— CouES, Key, 1872, 214, (ig. 142; Check List, 1873, No. 340; Birds N.W., 



1874, 349. — IlENSUAW, 1875, 413. 

 Falco {Tinnunculus) sparrerius, Cassin, Baird's Birds N. Am., 1858, 13. — Ridgw., 



in B. B. & R., Hist. N. Am. Bird.s, III, 1874, 109. - 

 Tiiinunculus sparverius, Vieill., Oi.s. xVm. Sept., I, 1807, 40, pi. 12. — Baiuu, Cat. 



N. Am. Birds, 1859, No. 13. 



Regarding the western range of this widely-distributed species, nothing 



