COLE: AVES FROM YUCATAN. 127 



38. *Nyctidromus albicoUis yucatanensis Nelson. 



Proc, Biol. Soc. Wash., I'JOl, 14, p. 171. 



Nijctidromus albicoUis merrilli Senn. Cliapiuan, Bull. Arner. Mus. Nat. Hist., 

 1896 i 8, p. 285. 



Yucatan Parauque. 



Maya name, im-lmi. Said to be an evil .spirit that is supposed to swoop 

 down at night and cany people away. 



Three specimens : 



a. (J, March 10, 1904. 



b. .Chicben-Itza, Feb. 5, 1890, E. H. Thompson (Pablo Perera). 



c. Chichen-Itza, 189- E. H. Tliompson. 



Nelson has recently described the Yucatan Parau([ue as distinct from Mer- 

 rill's Parau(iue {N. a. merrilli Senn.), which Chapman considered the Yuca- 

 tan form to be. Dr. G-aumer (Boucard, Proc. Zool. Soc. Lond., 1883, p. 451) 

 states that this is the "most common of all the Caprimulgidae in Yucatan." 



The testes of the male procured by me were very much enlarged (left testis 

 measured 16 mm. X 8 mm.). This would seem to indicate that it was near the 

 breeding season for this bird. 



39. Nyctagreus yucatanicus (Hartert) Nelson. 



Proc. Biol. Soc. Wash., 1901, 14, p. 171. 



Caprimulgus ijucatanicus Hartert, Cat. Birds Brit. Mus., 1892, 16, p. 575. 



One specimen: 9> March 18, 1904. 



So far as I am aware, there is but one previous record of this bird from Yuca- 

 tan, and that a female taken by Dr. Gaunier on June 10, 1879. On account 

 of the " pure white band across the throat and the white tips to the outer tail- 

 feathers, so frequently characteristic of the male in Caprimulgidae " Salvin and 

 Godman (Biol. Centr.-Amer., 2, p. 388) were led to doubt whether the sex 

 of this specimen was properly determined. My bird, however, which was 

 undoubtedly a female, possessed these same markings. 



40. Antrostomus salvini (Hartert). 



Mexican Whippoorwill. 



One specimen: ^, March 29, 1904. 



Stated by Gaumer (Boucard, Proc. Zool. Soc. Lond., 1883, p. 451) to be 

 "very common in Merida." Nelson (Proc. Biol. Soc. Wash., 1905, 18, p. 112) 

 has published the measurements of this specimen as follows : Wing, 176 ; tail, 

 130; culmen, 14; tarsus, 18. 



CYPSELIDAE. 

 41- Chaetura gaumeri Lawrence. 

 Gaumer's Chimney Swift. 

 Maya name, kfi-sam. 



