JAEGERS : Family Stercorariidae [ 2.77 ] 



tion, was taken by E. Rett at the Narrows, Harney County, July z, 19x5; 

 and the second, now in the United States National Museum, was col- 

 lected by Jewett at Strawberry Lake, high in the Blue Mountains of 

 Grant County, on July 15, 1915. This leaves little gap between the last 

 spring bird (June 12.) and those first going southward in the fall. We 

 consider, however, that the June 12. bird was a very belated straggler 

 perhaps weakened enough from some cause to prevent the northward 

 flight at the normal season. Except for this one bird, our latest spring 

 record is May 19, which may be regarded as much nearer the normal 

 period of departure. These few early southward-moving individuals, 

 moreover, might easily be nonbreeding birds or individuals whose nests 

 had been destroyed too late in the season to allow a second clutch. Aside 

 from the two birds mentioned above and a July 6 sight record for Tilla- 

 mook County, about July zo seems to be the normal date for the arrival 

 of the southbound birds. Our latest fall record is October 6 (Klamath 

 County). In western Oregon we have noted the species in Jackson, 

 Josephine, and Multnomah Counties as straggling individuals or in small 

 flocks, and along the coast, from Curry to Clatsop Counties, as a common 

 bird. 



Although this dainty little phalarope is most abundant offshore, some- 

 times exceeding the Red Phalarope in numbers, it is not such a confirmed 

 lover of the briny deep as the latter and is found much more commonly 

 along the beaches and tide flats. When on the ocean, it acts much as 

 does its larger and heavier cousin; when in the tide pools and shallows 

 of the bay, numbers of them can frequently be seen sitting quietly on the 

 water or converting themselves into tiny "Whirling Dervishes" as they 

 tread up the water, pausing now and then to pick up some small repre- 

 sentative of the abundant aquatic life disturbed by the small feet. 



Jaegers: Family Stercorariidae 



Pomarine Jaeger: 



Stercorarius pomarinus (Temminck) 



DESCRIPTION. "Adults: Light phase: face, crown, and upper parts, except collar, 

 sooty black; throat white, becoming silky yellow on cheeks and around back of 

 neck; breast white, chest and sides mottled with sooty. Dark phase: wholly dark 

 sooty or plumbeous. All grades are found between the dark and light phases. 

 Young: back dusky, feathers tipped with buff; rest of plumage dull buff, barred with 

 dusky." (Bailey) Downy young: "Immaculate grayish brown (between benzo brown 

 and deep brownish drab) passing into paler (between benzo brown and drab) on 

 chin and under parts of body; bill brownish, the legs and feet much paler brownish. ' ' 

 (Ridgway 1919.) Si%e: "Length 2.0-13, wing 13.50-14.00, tail 8-9, bill 1.45-1.75." 

 (Bailey) Nest: A slight depression in the soil, just large enough to accommodate 

 the eggs. Eggs: z to 3, ground color "brownish olive" to "dark olive buff," 

 sparingly spotted with brown, drab, or gray. 



