V I R E O S : Family Vireonidae [ 495 ] 



can determine, H. H. Sheldon, of the Biological Survey, collected the 

 first actual Oregon specimen at Homestead, Baker County, on May 31, 

 1916. He stated that no others were seen, and neither of the two above 

 records has been previously used. The credit for the first publication of 

 the species from the State goes to A. C. Shelton (1917), who took an 

 adult male near Oakridge, Lane County, June n, 1916, less than a month 

 after the Baker County bird was taken. The next evidence is that of 

 Cantwell, who saw one bird June 7 and another June 10, 1919, near 

 Paradise, Wallowa County. This may have been the same individual or 

 possibly two different birds. On June 14, 192.3, W. E. Sherwood collected 

 an adult male at Imnaha, Wallowa County, that is now in Jewett's 

 collection (No. 2.940). 



Evidently in recent years this bird has become increasingly common, 

 for since 192.4, when we first found it in Portland, we have encountered 

 it with increasing frequency. On July 6 of that year, while on a field trip 

 together on the Hall Ranch east of Portland on the Columbia River 

 bottoms we found a nest containing three eggs and collected two adult 

 birds. The nest was located in a wild crab-apple tree about 8 feet from 

 the ground. We saw additional birds in that vicinity on numerous occa- 

 sions that summer, and each season since we have found the species along 

 the Columbia as far down the river as Sauvies Island. We have seen it 

 repeatedly on that island, which to date is the farthest-west station for 

 the species. In some years we have heard as many as a dozen singing 

 males in a June or early July tramp of a few miles along the dikes that 

 edge the Columbia near Portland. The species has undoubtedly spread 

 westward and become more common in recent years and has also doubtless 

 grown more abundant in northeastern Oregon, as we have found it present 

 there with greater frequency. It arrives in May and remains until Sep- 

 tember (earliest date, April 2.7; latest, September 8, both Multnomah 

 County). 



Western Warbling Vireo: 



Vireo gilvus swainsoni Baird 



DESCRIPTION. "Adults: Upper parts olive gray, grayest on head and most olive on 

 rump and upper tail coverts; white streak through eye; wings and tail dusky brown, 

 unmarked, wing with a well-developed spurious primary; sides of head pale brown- 

 ish or buffy; under parts white, shaded with olive yellow on sides. Young: top of 

 head and hind neck pale grayish buff; rest of upper parts buffy, wings with buffy 

 bars; under parts pure white, except for yellowish tail coverts." (Bailey) Si%e: 

 Length (skins) 4.19-5.08, wing 1.44-1. 87, tail 1.77-1.13, bill .35-. 43. Nest: Similar 

 to that of Red-eyed Vireo, but usually higher above the ground (Plate 84, E). Eggs: 

 4 or 5, white, spotted around larger end with brown and lilac. 



DISTRIBUTION. General: Breeds from southern British Columbia, southwestern 



