BIRDS OF LOWER CALIFORNIA. 309 



267. Dendroica aestiva (Gmei.) 



Yellow Warbler. — At the Cape region it was found to 

 be rare by Mr. Belding. In spring Mr. Anthony says it is 

 common on the northwest coast up to 2,500 feet altitude. 



268. Dendroica bryanti castaneiceps Eidgw. 



Mangrove Warbler. — "Common in the shrubbery around 

 the Bay of La Paz; also seen at Pichalinque Bay and 

 Espiritu Santo Island. It frequented almost exclusively 

 the mangroves {Rhizopora mangle), and is probably resident." 

 (Belding). I heard their song in the mangroves bordering 

 the long estero northward from Magdalena Bay, and in the 

 mangroves on Santa Margarita Island where I saw a male 

 March 2. 1889. 



269. Dendroica auduboni (Towns.) 



Audubon's AYarbler. — In the Victoria mountains and the 

 Cape region Mr. Belding found it common, but rare at 

 Hansen's, May 14. On San Pedro Martir Mr. Anthony met 

 with it at 9,000 feet elevation May 10. In the winter of 1885-6, 

 I collected two males on Guadalupe Island. They were also 

 found on Santa Margarita Island, and in March at Comondu. 



270. Dendroica nigrescens (Towns.) 



Black-throated Gray Warbler. — In the Victoria mount- 

 ains Mr. Belding found it very common above 3,000 feet 

 altitude and occasionally saw it in canons of about 1,000 

 feet altitude. At Hansen's it was rather rare May 14. 

 Specimens were shot at Tia J nana May 2. Mr. Anthony 

 has found it only in the region of San Pedro Martir where 

 it breeds from 7,500 to 11,000 feet altitude. 



271. Dendroica townsendi (Nutt ) 



Townsend's Warbler. — A male was seen April 14, 1882, 

 at Mirafiores by Mr. Belding; and at Tia Juana he shot 

 specimens May 2. Mr. Anthony has taken a single bird in 

 spring at San Quintin. 



