58 BULLETIN" 162, UNITED STATES NATIONAL MUSEUM 



Durango (Kancho Baillon) ; Chihuahua (San Diego) ; and Sonora 

 (San Pedro and Sesabe). West to Sonora (Sesabe) ; and southern 

 Arizona (Arrivaca, Sierrieta Mountains, and Picacho). It has been 

 detected casually in eastern Texas (Gainesville and Bonham). On 

 August 19, 1926, three specimens were collected at Elkhart, Morton 

 County, Kans. It is a common species across the State line in south- 

 eastern Colorado. 



The range above outlined is for the entire species. By recognition 

 of the Arizona, New Mexico, and Colorado bird (C. s. pallida), the 

 typical subspecies (C. s. squamata) is restricted to northwestern Mex- 

 ico. Another race, the chestnut-bellied scaled quail (C. s. castano- 

 gastris), inhabits the lower Rio Grande Valley in Texas and adjacent 

 regions in northeastern Mexico. 



Attempts to transplant the scaled quail to other regions have gen- 

 erally resulted in failure. Among these may be mentioned introduc- 

 tions in Louisiana, Florida, Georgia, and Washington. So far as is 

 known, the only successful transplantation was made in Colorado at 

 Colorado Springs and probably also at Canyon City. From these 

 points the birds have spread and increased until they are now com- 

 mon in the Arkansas Valley from Pueblo east to the State line, and 

 it appears that the introduced stock has met and blended with the 

 native birds working northward along the Las Animas River. 



Egg dates. — Texas {'pallida) : 11 records, May 7 to June 22. Ari- 

 zona and New Mexico: 37 records, April 16 to September 22; 19 

 records, June 11 to July 7. 



Texas and Mexico (castanogastris) : 44 records, March 7 to June 

 28 ; 22 records, May 3 to June 2. 



CALLIPEPLA SQUAMATA CASTANOGASTRIS Brewster 

 CHESTNUT-BELLIED SCALED QUAIL 



HABITS 



The scaled quail of the lower Rio Grande Valley in Texas and 

 eastern Mexico is more richly and darker colored than the quail found 

 farther west, and, as its name implies, it has a well-marked patch of 

 dark chestnut in the center of its belly, which is more prominent in 

 the male than in the female. George B. Sennett (1879) thus de- 

 scribes its habitat : 



The foothills of the Rio Grande, about 100 miles back from the coast, are the 

 eastern limits of this bird, as well as of the Cactus Wren and the Yellow-headed 

 Titmouse. The first rise of ground in going up the river occurs at Lomita 

 Ranch, and here we often saw these beautiful birds running about ; but although 

 we frequently collected a mile or two below the hill, there we never saw them, 

 and not even in the fertile and heavily wooded lowlands in the vicinity of this 

 hill did we observe them. A few miles up from Lomita and back from the river, 



