58 NORTH AMERICAN FAUNA 70 



Ewphagus cyanocephalus. Brewer's Blackbird. 



Specimens: Two, 1.6 km E Prospect, female, April 12, 1947, and 

 male, March 29, 1947; 9.7 km N Prospect, female, April 27, 1935; 

 Ashland, two males. May 7 and 25, 1968. This blackbird is a very- 

 common permanent resident and breeding species in the Chaparral- 

 Oak Community and Mixed Conifer Forest. 



Molothrus ater. Brown-headed Cowbird. 



Specimens: Four, 12.9 km SW Prospect, both sexes, in May, June, 

 and July. The Brown-headed Cowbird is a fairly common summer 

 resident and an uncommon winter resident in Jackson County. It 

 occurs with mixed flocks of blackbird species in the valley during 

 winter. In spring the cowbird population increases and the species 

 disperse throughout most of the county, especially to the Mixed 

 Conifer Forest. Gabrielson and Jewett (1940) consider the species a 

 rare straggler to western Oregon on the basis of a specimen collected 

 in Lane County in 1925 (Jewett 1930) and a specimen collected there 

 in 1930. Thatcher (1953) collected an immature bird in Medford on 

 July 11, 1950, and suggested that Jackson County offers a suitable 

 breeding habitat for the Brown-headed Cowbird. Specimen evidence 

 and observed territorial displays substantiate this species as a breeding 

 bird in Jackson County. 



Piranga ludoviciana. Western Tanager. 



Specimens: Seven, 12.9 km SW Prospect, both sexes, in May, June, 

 and September. The Western Tanager is a common migrant in the 

 Lower Rogue River and Bear Creek valleys and common summer 

 resident in Mixed Conifer and True Fir forests. Earliest, April 9, 

 Jacksonville; latest September 19, Medford. 



Pheucticus melanocephalus. Black-headed Grosbeak. 



Specimens: Three, 12.9 km SW Prospect, both sexes. May and 

 June. This species is a common summer resident in the Lower Rogue 

 River and Bear Creek valleys; it arrives in early April and departs in 

 late September. It is fairly common in Mixed Conifer Forest at least 

 near Ashland and Jacksonville. 



Passerina amoena. Lazuli Bunting. 



Specimens: 3.2 km SW Prospect, male, June 1, 1935; 12.9 km SW 

 Prospect, sex ?, June 11, 1946. The Lazuli Bunting is a fairly common 

 summer resident in the Chaparral-Oak Community. Earliest, April 30, 

 Larson Creek; latest, early September, Bear Creek Valley. 



Hesperiphona vespertina. Evening Grosbeak. 



Specimens: 12.9 km SW Prospect, male and female, February 1, 

 1949; Ashland, male. May 27, 1971. The Evening Grosbeak is a fairly 

 common permanent resident occurring sporadically throughout most 

 of Jackson County. The species frequents the Chaparral-Oak Com- 



