THE BIEDS OP HAITI AND THE DOMINICAN EEPUBLIC 253 



able to fly. These are in molt from juvenal to first fall plumage, 

 with most of the feathers except those on the breast already replaced. 

 Where juvenile feathers persist on lower breast and abdomen the 

 markings are softer and less distinct and the color is more buffy than 

 in the next plumage. Otherwise they are like the adults. 



Following are measurements of the series in the Academy of 

 Natural Sciences: 



Four males, wing 115.0-120.1 (117.0), tail 99.1-104.8 (101.2), 

 culmen from base 9.2-11.3 (10.6), tarsus 24.4-24.9 (24.6) mm. 



Five females, wing 112.9-120.2 (114.8), tail 92.6-104.1 (97.4), 

 culmen from base 9.6-11.0 (10.3), tarsus 22.2-23.9 (23.1) mm. 



Wetmore agrees with Bond that the present species should be 

 placed in the genus /Siphonorhis since the structural differences 

 alleged in the original description of Microsiphonorhis do not hold 

 when a series is examined, the only apparent distinction between 

 hrewsteri and Siphonorhis americanus being that the bill in the 

 former is relatively heavier. The long, strong tarsi of the bird of 

 Hispaniola attract attention at once, and we agree with Chapman 

 that in length of tarsus and in general appearance both Siphonorhis 

 americanus of Jamaica and S. hrewsteri are of the same general tj^pe 

 as Nyctidromus of the continental American tropics. 



The present species is distinguished by small size from all others 

 of its family found in Hispaniola. It is brownish gray above, 

 mottled as usual in goatsuckers with a mixture of black and lighter 

 colors. There is a distinct white throat band, and the under surface 

 is barred and vermiculated with black and buff or buffy white. 



Subfamily Chordeilinae 



CHORDEILES MINOR VICINUS RHey 



BAHA1TAN NIGHTHAWK, QUEREBEBE, PETIT-ON-VOIR 



Chordeiles virginianus vicinus Riley, Auk. 1903, p. 432 (Long Island, 

 Bahamas). 



Aves Nocturnas, Oviedo, Hist. Gen. Nat. Indias, Libr. 14, cap. 7; Reprint, 

 1851, p. 446 (habits). 



Chordeiles minor, Cory, Birds Haiti and San Domingo, July, 1884, pp. 85-83 

 (La Vega, specimens) ; Cat. West Indian Birds, 1892, p. 105 (Haiti, Dominican 

 Republic).— Tippenhauer, Die Insel Haiti, 1S92, p. 321 (listed).— Christy, 

 Ibis, 1897, pp. 32S-329 (La Vega ) .— Verrill, Proc. Acad. Nat. Sci. Philadelphia, 

 1909. p. 360 (Dominican Republic, common). 



Chordeiles virginianus minor, Kaempeer, Journ. fur Ornith., 1924, p. 182 

 (Dominican Republic, common). 



Chordeiles virginianus gundlachii, Peters, Bull. Mus. Comp. Zool., 1917, p. 

 411 (Sosua).— Bond, Proc. Acad. Nat. Sci. Philadelphia, vol. SO, 192S, p. 502 

 (Port-de-Paix, Acul Samedi, Tortue Island). — Danforth, Auk, 1929, p. 369 

 2134—31 17 



