. BIRDS——-CAPRIMULGIDEA—ANTROSTOMUS NUTTALLI. 149 
List of specimens. 
Catal. | Sex. Locality. When col- | Whence obtained. Orig’! Collected by— Length. | Stretch | Wing. | Specimen 
No. | | lected. | No. | of wings. mneasured. 
ae = 
1410 | | Carlisle, Pa..............| May 1, 1844 10.00 19.295 | 6.42) Fresh... 
2144 | Gi |eceeee dO vsecccccccasocecs April 26, 1845 9.75 19.95 | 6.42 Fresh... 
2432 1) coeees Ol vc ccenscses -+| Sept. 6, 1845 | ee 9.83 18.75 6.25 | Fresh... 
6963 | Q | St. Louis,Mo............ | Mayog831857)| CieutsBryanese se. scr ces (s+ css) Wade) WGOd.. eceeiecces. leone coee,| waerise>< | wossiseis| sate casas 
8382 | | Independence, Mo....... | June 20, 1857, Wm. M. Magraw | 10,00 18.75 650 Fresh 
| GB | Racine, Wis .........s00 cece eee [PR KennicOttavcesesites’|eeleses| Is HOY cieccsscccecleses|sccceccs||/acsciecee| soesissselevcsivonces 
ANTROSTOMUS NUTTALLI, Cassin. 
Nuttall’s Whippoorwill. 
Caprimulgus nuttalli, Avp. Birds America, VII, 1843 ; pl. 495 appendix. 
Antrettomus nuttalli, Cassin, J. A. N. Sc. Phila. 2d series, I, 1852, 123.—Is. Ill. [, 1855, 237.—Newserry, Zool. 
Cal. and Oregon Route, 77; Rep. P. R. R. Surv. VI, rv. 
Spr. Cu.—Bristles without lateral filaments ; wing about 53 inches ; top of the head hoary gray, with narrow transverse, not * 
longitudinal bands. Tail nearly black on the terminal half, the extreme tip only (in the three outer feathers of each side) 
being white for nearly an inch. Length 8.00; wing 5.50. 
Hab.—High central plains to the Pacific coast. 
I regret that the materials before me are not such as to admit of a satisfactory description, 
especially as in the wide range of localities there are indications of differences which may even 
be of specific value. I shall, therefore, be obliged to copy from Audubon the description of the 
species as obtained in its original locality—the upper Missouri. 
This species is said to have a note somewhat similar to that of the whippoorwill, except that 
the first syllable is omitted, leaving the sound something like that of ‘‘ poor-will.’’ 
The much smaller size of the 4. nuttalli will at once distinguish it from the A. vociferus. 
The colors, too, are very different. The general hue is much lighter. The top of the head 
lacks the median stripe. The white patch of the throat is much larger. The white of the tail 
is confined to a space of less than one inch at the end, &c. 
1 The following is the original description of the species by Audubon : 
Caprimulgus nuttalli, Aup. Birds America, VI, pl. 495, 2 ed. 
Male—Bill black ; iris dark hazel ; feet reddish purple ; scales and claws darker ; general color of upper parts dark brownish 
gray, lighter on the head and medial tail feathers, which extend } inch beyond the others, all which are minutely streaked and 
sprinkled with brownish black and ash gray. Quills and coverts dull cinnamon color, spotted in bars with brownish black ; tips 
of former mottled with light and dark brown ; three lateral tail feathers barred with dark brown and cinnamon, and tipped 
with white. Throat brown, annulated with black ; a band of white across fore neck ; beneath the latter black, mixed with 
bars of light yellowish gray and black lines. Under tail coverts dull yellow. Length, 7.25 ; wing, 5.75; bill, edge, .19 ; 
second and third quills nearly equal. Tail to end of upper feathers, 3.50; tarsus, .63; middle toe, .63 ; claw, .25: strongly 
pectinated. 
