March, iSgS. Birds of the Pacific Slope of Los Angeles County. 45 



gions and along the arroyos in large numbers during August, and even 

 by the middle of July. Remains in diminishing numbers through the 

 winter; the latest specimen noted in the spring was secured by me, 

 Feb. 29 ('96). This race is apparently quite distinct from the last, and 

 is probably a visitant to the mainland from ' the neighboring islands of 

 San Clemente and Santa Catalina at a season when the latter are dry 

 and uninviting. The large size, especially of the bill and feet, and 

 darker colors of H. c. sordida render it readily distinguishable from the 

 small ;^ellow lutescens. The birds found breeding in this county are 

 evidently of the latter race. 



257 — (5^7. Helminthophila peregrin a (Wils.). 

 Tennessee Warbler. 

 Only one record: I shot an immature female in the Arroyo Seco 

 Canon near Pasadena, Sept. 27, '97. 



258 — 6^2. Dejidroica cestiva (Gmel.). 



Yellow Warbler. 



Common summer resident in wooded localities, especially along 

 streams, from the willow regions to 5000 feet altitude in the mountains. 

 My earliest and latest dates are, April 2 ('95) and Sept. 22 ('94). Dur- 

 ing the migrations in April and September, this warbler is particularly 

 numerous and well distributed over the mesas and lowlands. The 

 breeding season commences by the second week in May. Extreme 

 nesting dates: Set four, slightly incubated, taken by H. A. Gaylord 

 near lyos Angeles, May 12 ('95); and set of three fresh eggs, taken by 

 me near Pasadena, June 26 ('93). Full sets are almost invariably of 

 four eggs. 

 259 — 6§£. Dendroica coronata (I^inn.). 



Myrtle Warbler. 



Tolerably common winter visitant, associating with Audubon's 

 Warbler. Specimens have been taken during December, January and 

 February. 

 260 — 6^6. Dendroica auduboni (Towns.). 



(Audubon's Warbler. 



Very abundant and generally distributed throughout the county 

 during the winter; in moderate numbers in the higher mountains 

 through the summer. It appears in the lowlands about the first week 

 in October, and remains until the first of April, while I have noted a 

 few along the foothills as late as May i . In summer it is found in the 

 coniferous forests on the mountains above 5000 feet altitude. W. B. 

 Judson took a set of five fresh eggs on Mt- Wilson, May 29, '97. I 

 observed full-grown juveniles in the same locality on June 22 ('95). 

 261 — (557. Dendroica maculosa (Gmel.). 



Magoolia Warbler. 



Only one record: H. S. Swarth took an immature female near 

 I/OS Angeles on Oct. 21, '97. 

 262 — 66^. Dendroica nigtescens (Towns.). 



Blacl^-tbroated Gray Warbler. 



Common summer resident of the mountains from the foothills up 



