186 BULLETIN 17 6, UNITED STATES NATIONAL MUSEUM 



immaculate, but a closer inspection reveals a few faint blotches of 

 the palest possible purple, so faint indeed that they might pass for 

 superficial stains were it not for the fact that they underlie the 

 external polish." This egg measures 29.72 by 22.10 millimeters. 



Mr. van Eossem (1936) says of the egg referred to above: "This 

 single egg was by no means immaculate white, but was clouded and 

 mottled with brown and lilac, mostly in the nature of semi-concealed 

 shell markings. It was similar to but very much less highly colored 

 than eggs of the eastern vociferus, however." Another nest, found 

 by him later, "contained one pure white egg and a newly hatched 

 chick." 



Philo W. Smith, Jr. (1900), received two sets of eggs, taken by 

 O. C. Poling in the Huachuca Mountains, which "very much resemble 

 in shape and color sets of the common Poor Will in his collection, 

 being possibly a trifle larger, and one egg of each set has a few almost 

 imperceptible pinkish spots on one end, the other egg in each set 

 being unspotted." 



There is a set of two eggs in the Thayer collection, taken in the 

 Chiricahua Mountains, Ariz., on June 6, 1904, by Virgil W. Owen, 

 that are decidedly spotted. These eggs are oval and only moderately 

 glossy. The ground color is pure white, and both eggs are finely and 

 irregularly marked with small spots and minute dots of "pale Quaker 

 drab," "pallid Quaker drab," and very pale "clay color." 



The measurements of 29 eggs average 28.8 by 20.8 millimeters; the 

 eggs showing the four extremes measure 30.9 by 21.8, 29.0 by 22.6, 

 25.8 by 20.1, and 28.9 by 19.9 millimeters. 



Plumages. — I have not seen the downy young of this subspecies, but 

 the two newly hatched chicks, taken by Mr. Fowler, are described as 

 "covered with light brown down, and were not more than li/^ 

 inches long." Mr. van Rossem (1936) describes a newly hatched 

 chick as "clothed with a very respectable covering of down — in color 

 between 'cinnamon' and 'orange-cinnamon' of Ridgway." 



I have not seen enough material to work out the molts of this race, 

 but I suppose that they are not very different from those of the 

 eastern whippoorwill. Mr. Brewster's type was a male, which is 

 described above. He later received an adult female from Mr. 

 Stephens, of which he says (1882) : "This specimen differs even more 

 widely from the female, than does my type from the male of A. 

 vociferus. The ochraceous of the lores, superciliary-stripe, and neck- 

 collar, spreads over the entire plumage both above and beneath, giving 

 it a tawny tinge which overlies and obscures the usual dark markings. 

 On the shoulders, breast, lores and throat this color deepens to a fine 

 reddish-chestnut, and elsewhere it replaces the ashy, dirty white and 

 other light tints of the eastern birds. In its general coloring the 



