[516] BIRDS OF OREGON 



DISTRIBUTION. General: Breeds from northern Alaska south through eastern Oregon 

 and California to mountainous New Mexico and Texas. Winters in Mexico and 

 Central America. In Oregon: Fairly common summer resident and breeding species 

 in mountains east of Cascades. 



THE NORTHERN PILEOLATED WARBLER as now classified was first detected 

 at Fort Klamath (Mearns 1879). Merrill (1888) also listed the bird as 

 common at Fort Klamath, Miller (1904) recorded it from Wheeler County, 

 and Walker (191 yb) from Haycreek, now in Jefferson County. The 

 records of Nuttall (1840), Cooke (i89ib), Peck (1896), and Finley (1902.) 

 from western Oregon are referable to the form now known as the Golden 

 Pileolated Warbler. In addition to these published records, we have 

 noted or taken the species in Klamath, Lake, Harney, Malheur, Baker, 

 Wallowa, Um a til la, Jefferson, Deschutes, and Wasco Counties. It arrives 

 in May (earliest date, April 2.9, Wallowa County) and remains until 

 September (latest date, September 2.1, Lake County). It undoubtedly 

 occurs in Union and Grant Counties, although we have no records for 

 either, and it most certainly will be detected at least as a migrant in the 

 remaining counties of eastern Oregon. 



We have no actual nesting records, although we have collected the 

 species throughout the breeding season, and our specimens include 

 juveniles that certainly had not traveled far from their homes. So far as 

 our own notes or published records go, however, the first actual Oregon 

 nest remains to be discovered. 



Golden Pileolated Warbler: 



Wilsonia fusilla chryseola Ridgway 



DESCRIPTION. Like the previous subspecies but smaller and much brighter colored. 

 Si^e: Length (skins) 4.11-4.55, wing 1.11-1.34, ta ^ 1.83-1.05, bill .18-. 35. Nest 

 and eggs: Same as for the previous subspecies. 



DISTRIBUTION. General: Breeds along Pacific slope from British Columbia to south- 

 ern California. Winters in Mexico and Central America. In Oregon: Common 

 summer resident and breeding species west of Cascades. 



THE GOLDEN PILEOLATED WARBLER is the western Oregon counterpart of 

 the Northern Pileolated Warbler differentiated by the deeper and more 

 golden yellow color. It is a bird of the brushlands, being most abundant 

 along the coast, where it is one of the common summer birds. It arrives 

 in May (earliest date, May 5, Coos County) and remains until late 

 August (latest date, September 10, Tillamook County). Nuttall (1840) 

 recorded fledged young, May 12., 1835, on the Columbia River, surely a 

 mistake, as it is one of the latest warblers to arrive. He also listed eggs 

 taken along the Willamette River on May 16. As stated previously, 



