508 ORNITnOLOGY. 



844, S ad. (i)arent of preceding); East Ilnmboklt Mountains, July 20, lS(iS. Si 

 — 173— (?)— 41. Bill, deep black; interior of the mouth, flesh-color; iris (very narrow j, 

 umber; eyelids, ochraccous-brown; tarsi, pale ashy-lilaceous, the toes darker. 



937,"^ A ad; Upper Humboldt Valley, September 19, 1SG8. Sg— 17J— (?)— 5. 

 Same remarks. 



1379, S ad; Uintah Mountains, Utah, July 7, 18G9. SJ— 17;|. Bdl, black; iris 

 (narrowly), brown; eyelids, dull ochraceous; tarsi and toes, dull dusky purplish. 



Chokdeiles popetue. 



Ni^'lit-IIawk. 



/?. Jioiri/i. 



(Kow'a-Iook of tlie Waslioes; Wy' -e-}ii)-ah' -oh of the Slioshones.) 



Chordciles henryi, Gassin, Illust. Birds Cal., Texas. &c., 1855, 239.— Baird, Birds 



N. Am., 1858, 153, 922; Cat. N. Am. Birds, 1859, No. 115. 

 Chordciles popetue var, henryi, Allen, Bull. Mus. Comp. Zool., Ill, 1872, 179. — 



B. B. & R., Hist. N. Am. Birds, II, 1874, 404, pi. XLVi, fig. 4.— Henshaw, 



1875, 307. 

 Chordeilcs rirginianus var. henryi, CoUES, Key, 1872, 181; Check List, 1873, No. ■ 



2«7a. 

 Chordciles virginianns. h. henryi, COTJES, Birds N.W., 1874, 2G4. 

 Chordciles popetue. Cooper, Orn. Cal., I, 1870, 343. 



The Niglit-IIawk was a common summer inhabitant of the country 

 ti-aversecl. It was most numerous during the months of August and Septem- 

 ber, when just before dark they congregated in immense numbers and over- 

 spread in scattered flocks those hjcahties where insect-life most abounded- 

 In July, their well-known booming soiuid Avas often heard. During the 

 greater portion of the day they remained inactive, and were then frequently 

 siu-prised during their siesta, as they perched on a horizontal limb, a board 

 of a fence, or a stick lying on the ground, their position being, according to 

 our experience, invaiiably lengthwise with the perch.^ While thus resting 

 they often evince a strong attachment to the perch they occupy, returning 



' This disposition to sit lengthwise with the perch may be considered by some ii 

 constant habit of the Caprimulgidae; we should be inclined to so regard it ourselves, 

 were it not for the fact that the first specimen oi Antrostomus vociferus wc ever killed 

 was shot while asleep on a small branch of a hickory tree, its position being at riglit- 

 iiiijiles with the direction of the twig, iu the manner usual among the true "perchers" 

 (I'asseres, etc.). 



