iS86.] Scott on the Birds of An'zo7in. 42Q 



91. Colaptes chrysoides. Gilded Flicker. — A rather common i-esi- 

 dent wherever the giant cactus occurs throughout the region, but is much 

 more common in the giant cactus of the southern part of the area under 

 consideration than to the northward. They are common all about Tucson 

 in such localities as I have indicated, but are more rare in the San Pedro 

 Valley. I have met with the species in early spring and fall on the San 

 Pedro slope of the Catalinas as high up as 3000 feet. I have now and then 

 seen single individuals in the mesquite timber, far away from any giant 

 cactus. All that I have ever met with breeding have been in giant cactus. 

 The breeding time about Tucson is from April 10 until the last of May. 

 Unlike the other Flickers that I am aquainted with, the number of eggs 

 is small, varying from two to five, which latter is the largest number I 

 have ever found in a nest. I have in a former paper described a so-called 

 hybrid between this species and the Red-shafted Flicker (C. cafcr). The 

 bird was taken by Mr. Herbert Brown, near Tucson. (For details see 

 'The Arizona Daily Star,' Tucson, December 16, 18S4.) 



92. Antrostomus vociferus arizonae. Stephen's Whip-poor-will. — 

 On the evening of the i6th of April, 1S85, 1 heard a Whip-poor-will, which 

 I was unable to get. The note was somewhat harsher than that of the 

 true Whip-poor-will of the East, but the same in cadence. I can only refer 

 it to this species. This was at a point near my house in the Catalina 

 Mountains, and is the only time I have met with the bird. 



93. Phalaenoptilus nuttalli. Poorwill. — An abundant migrant. It 

 breeds in the mountain regions but, so far as I am aware, does not occur 

 much below an elevation of 30CO feet. They arrive from the middle to the 

 last of February in the Catalinas, and are in full song at the time of arri- 

 val. I have heard them singing as late as November 10, which is the 

 latest record I have of their stay in the Catalinas. (For the occurrence 

 of the species at the higher altitudes, see Auk, Vol. II, No. 4, p. 256.) These 

 birds are frequently to be heard singing in the daytime and my records of 

 this are numerous. "Catalinas, 4000 feet, [5th July, 1SS4. Bright sun- 

 shine. W&^rd i\. Pkalcenoptiliis «?;^^rt/// singing continuously from 12 m. 

 till 12.20 P.M." I have similar records of singing in the forenoon and 

 afternoon, and usually the birds begin singing before it is dark. 



94. Chordeiles virginianus henryi. Western Nighthawk. — Met 

 with a few times in the early spring in the Catalinas at an altitude exceed- 

 ing 4000 feet. Not observed at other times of the 3'ear, and apparently 

 uncommon at any time. 



95. Chordeiles texensis. Texan Nighthawk. — An abundant migra- 

 tory species, below an altitude of 4500 feet. Breeds commonly. About 

 Tucson this species is particularly common during the months of May 

 and June, and I observed it at Florence and Riverside all through the 

 summer months and early in October. I have also notes of their occur- 

 rence, though by no means so commonly, both in the Catalina^^and Pinal 

 Mountains, up to the altitude indicated above. In the Catalinas I found 

 a pair breeding May 20, 1885, at an altitude of 3500 feet. 



96. Chaetura vauxii. Vaux's Swift. — The only time that I have met 



