BIRDS OF JACKSON CO. , OREGON, & SURROUNDING AREAS 55 



Dendroica coronata. Yellow-rumped Warbler. 



The yellow- throated subspecies, auduboni, and the white-throated 

 subspecies, coronata, are generally easy to distinguish in the field so 

 they are treated separately here. 



Dendroica coronata coronata. Fairly common migrant and uncom- 

 mon winter resident. This subspecies is reported most often in the 

 Lower Rogue River and Bear Creek valleys. Spring migration peaks 

 from April 1 to 15. One or two nominate coronata are recorded annually 

 on the Medford CBCs. 



Dendroica coronata auduboni. Specimens: Three, 12.9 km SW Pros- 

 pect, male, April 10, 1946, female April 11, 1946, and male May 29, 

 1934; 4.8 km N Prospect, female, June 8, 1934. The yellow-throated 

 subspecies is a fairly common permanent resident that breeds in the 

 mountains in Mixed Conifer and True Fir forests and winters in the 

 valley areas. During spring migration the number of birds increases 

 between April 1 and 15 in the valley. 



Dendroica nigrescens. Black-throated Gray Warbler. 



Specimen: 3.2 km S Medford, male, May 24, 1969. This mountain 

 warbler is an uncommon migrant and summer resident. During migra- 

 tion it may be found throughout the county. In summer it breeds in the 

 Mixed Conifer Forest of the Cascades and probably the Siskiyou 

 Mountains. Earliest, March 31 ; latest, October 7, Medford. 



Dendroica townsendi. Townsend's Warbler. 



Specimen: 12.9 km SW Prospect, male, July 23, 1949. The Town- 

 send's Warbler is an uncommon migrant and winter visitor. There 

 are only two summer records of this warbler in Jackson County, the 

 specimen cited and a bird observed on Roxy Ann Peak on August 20, 

 1961. The latter was probably an early fall migrant. Earliest, April 

 30, Ashland; latest, October 11, Larson Creek. Wintering birds or 

 winter visitors have occurred in the Medford area in November, 

 December, and January. 



Dendroica occidentalis. Hermit Warbler. 



The Hermit Warbler is an uncommon migrant in the foothills and 

 mountains that probably breeds in coniferous areas of the county. A 

 pair nested at Ashland in 1962 at 610 m, far below normal breeding 

 altitudes. The species arrives in the county in late April and departs in 

 late August. 



Seiurus noveboracensis. Northern Waterthrush. 



Accidental. There are two sight records of this warbler in Jackson 

 County; one was near Shady Cove on May 30, 1964, and one at the 

 same location on August 16, 1970. Gabrielson and Jewett (1940) cite 

 the first specimen collected in Oregon, a bird at Beaver (Tillamook 

 County) on August 26, 1931. Kridler (1965) collected a female 



