110 NORTH AMERICAN FAUNA. 



[No. 7. 



Petrochelidon limifrons. Cliff Swallow. 



This widely distributed species was found breeding in various locali- 

 ties visited by the expedition. In Nevada Dr. Merriam found a colony 

 breeding in the canon at the lower end of Yogas Wash, May 3, and saw 

 several at the Bend of the Colorado, May 4; he found it common in 

 Pahranagat Yalley, May 22-2(3, and in Oasis Yalley, June 1. In Utah 

 he saw a colony which was breeding near St. George, in the Lower Santa 

 Clara Yalley, where many nests were found on the red sandstone cliffs 

 a mile or two from the settlement. 



The cliff swallow was common in Owens Yalley, California. It was 

 seen along the edge of the lake at Keeler, May 30- June 4; at the mouth 

 of the canon above Lone Pine, June 12- and Mr. Stephens found it 

 common at Ha way Meadows, May 12-14- abundant at Olancha, May 

 16-23 j at Ash Creek, May 30 to June 3 j breeding in the canon at Benton, 

 July 9-10 ; and not common at the Queen mine, Nevada, July 11-1G. Mr. 

 Nelson saw it on Willow Creek in the Panamiut Mountains, the last of 

 May, and found it at the head of Owens Pviver, in the Sierra Nevada, 

 up to 2,100 meters (7,000 feet) altitude. It was common in Kern Yal- 

 ley, July 3-13, and in Walker Basin, July 13-16. At the latter place a 

 number of nests were found fastened against the ceiling and walls of 

 the rooms in several of the deserted buildings. Dr. Merriam found it 

 breeding commonly at Kernville, under the eaves and piazzas of houses, 

 June 23, and hi the Canada de las Uvas, under the eaves of Old Fort 

 Tejon, June 28-29. 



At Twin Oaks, in western San Diego County, he was shown a large 

 sycamore tree on the outside of which these swallows used to fasten 

 their nests, and was told that after heavy rains the nests were fre- 

 quently washed down in great numbers. The species was common at 

 Bakersfield, in the San Joaquin Yalley, July 17-20, and Mr. Stephens 

 found it not uncommon at Eeche Canon, near San Bernardino, Sep- 

 tember 22-24. 



Chelidon erythrogaster. Barn Swallow. 



The barn swallow was found nowhere common except in Owens Yal- 

 ley, California. It was first seen at Ash Meadows, Nevada, where two 

 were noted, March 19. In the same State, Dr. Merriam saw one at 

 Mount Magruder, June 8; one in Oasis Yalley, June 1; a number in 

 Pahranagat Yalley, May 22-26, where it was doubtless breeding, and 

 several near Bunkerville, in the Yirgin Yalley, May 7-8. He saw a sin- 

 gle bird near St. George, in the Lower Santa Clara Yalley, Utah, about 

 the middle of May. 



Mr. Nelson saw it as a migrant on the divide between Panamiut and 

 Saline valleys, the last of May, and at the head of Willow Creek, in 

 the Panamint Mountains, about the same time, He saw barn swallows 

 at the head of Owens Yalley in the White Mountains, at the head of 

 Owens Biver ? and also in the Zosemite Yalley. Mr. Stephens found it 



