NORTHERN PILEOLATED WARBLER 639 



York City, July 26 ; Bayside, Long Island, July 31. New Jersey — 

 Englewood region, August 15; Union County, August 20 (average, 

 September 1). Pennsylvania — Crawford County and Pittsburgh, 

 August 28. Maryland— Patuxent Wildlife Eesearcli Kefugee, Laurel, 

 August 17. District of Columbia— Washington, August 22. Vir- 

 ginia — Shenandoah National Park, August 19. North Carolina — 

 Piney Creek, September 4. Georgia — Athens, September 2. Ala- 

 bama — Birmingham, August 23. Florida— Pensacola, September 23. 

 Cuba — western Cuba, September 24. Mexico — Sonora, Kancho La 

 Arizona, western foothills of Pajaritos Mountains, August 16; Baja 

 California — San Jose del Cabo, August 25. Guatemala— above 

 Tecpan, September 3. Salvador— Monte Mayor, Volcan de Sociedad, 

 October 6. Costa Rica— Basin of El General, September 18. 



Egg Z>a25e5.— Alaska : 10 records, May 20 to July 3 ; 5 records, June 

 15 to 18. 



California : 82 records, April 27 to July 4 ; 41 records, May 10 to 

 June 10, indicating the height of the season. 



Colorado : 17 records, June 2 to July 1 ; 9 records, June 12 to 20. 



Maine : 2 records, June 4 and 22. 



New Brunswick: 7 records, June 6 to 21 (Harris). 



WILSONIA PUSILLA PILEOLATA (Pallas) 



NORTHERN PILEOLATED WARBLER 



Plate 77 



HABITS 



The western representatives of Wilso7iia pusilJa are divided into two 

 subspecies, the northern pileolated warbler (TF. p. pileolata) and the 

 golden pileolated warbler (TF. p. chryseola). The former breeds 

 from the northern tree limit in Alaska, southward along the coast 

 to the Queen Charlotte Islands, and farther southward, mainly in 

 mountain regions, as least as far as New Mexico and perhaps central- 

 western Texas. Dr. E. W. Nelson (1887) calls it "one of the com- 

 monest of the brush-frequenting species in the north and extends its 

 breeding range to the shores of the Arctic Ocean, where it is found 

 breeding about Kotzebue Sound as well as along the eastern coast 

 of Norton Sound wherever shelter is afforded." Dr. Herbert Brandt 

 (1943) says: "In the Hooper Bay area the Pileolated Warbler con- 

 fines itself to the brushy flanks of the Askinuk Mountains where it is 

 a rather common breeder. Along the lower Yukon River, however, 

 during early July I recorded it at every landing that we made as 

 far up as Moimtain Village." 



Referring to its status in Montana, Aretas A. Saunders (1921) 

 writes : "A common summer resident of the mountains in the western 



