306 CALIFORNIA ACADEMY OF SCIENCES. 



251. Pro§:ne subis hesperia Brewst. 



Western Martin. — Taken at Cape St. Lucas by Mr. Xan- 

 tus, and seen by Mr. Belcling at San Jose del Cabo, April 

 29, 1882. Collected at Sierra de la Laguna by Mr. Frazar. 

 Several colonies were found by Mr. Anthony nesting on 

 San Pedro Martir, at altitudes ranging from 7,500 to 8,000 

 feet. A few were seen migrating in April along tlie coast. 

 Mr. Belding found tliem nesting in dead pines at Hansen's. 

 A single pair was seen by me at San Fernando May 18, 1889. 



252. Petrochelidon lunifrons (Say). 



Cliff Swallow. — At San Jose del Cabo was first seen by 

 Mr. Belding April 29, 1882. At San Quintin Bay lie no- 

 ticed tliem in May, 1881. Nests were found by Mr. Anthony 

 in cliffs near the coast at San Ysidro in April and May. On 

 San Pedro Martir he found a small nesting colony at an 

 altitude of 8,200 feet. 



253. Chelidon erythrogaster (Bodd.) 



Barn Swallow. — Mr. Belding noticed it at San Quintin 

 Bay in May, 1881, but has not seen any south of there. A 

 few birds were seen at San Jorge in March, 1888. 



254. Tachycineta bicolor (Vieill.) 



Tree Swallow. — At the Cape region was often seen in 

 winter by Mr. Belding. Other observers do not mention it. 



255. Tachycineta thalassina (Swains.) 



Violet-green Swallow. — Noted by Messrs. Xantus and 

 Belding at the Cape region. Mr. Anthony says it is com- 

 mon in the pines on San Pedro Martir, nesting at Valla- 

 dares (2,500 feet) and higher. Near Comondu 1 found it 

 nesting in the holes made by the Gila woodpecker in giant 

 cacti. A full-fledged young was taken in April, 1888, near 

 Comondu. 



256. Ampelis cedrorum (Vieill.) 



Cedar Waxwing. — According to Mr. Belding, it is very 

 rare at the Cape region, where it feeds upon mistletoe ber- 



