With the autumnal equinox this week, we are seeing migrants returning to the Willamette Valley. The first flocks of Cackling Geese have arrived along with good numbers of Greater White-fronted Geese. The brambles are once again hosting Golden-crowned Sparrows.
Sandhill Cranes are gathering on Sauvie Island (Birding Oregon p. 55). These birds were seen along Sturgeon Lake on Oak Island.
Flocks of Yellow-rumped Warblers were moving through the woods and brushy areas of Oak Island today. This individual is a female of the Myrtle race. Notice how the white throat is cleanly separated from the gray cheek, with the white starting to wrap around the ear coverts. Audubon’s race does not show this clear demarcation.
Ethical Birder 
WOW! I was referred to your site by my partner….and will have to ask him how he found your page. WE are close to Sauvie’s, and often there all year: summer for produce, dog swims, and fall/spring for bird migrations. I guess it IS October..and HOW we love the Sandhills. THANKS for this heads up, we’ll get the camera down there in a couple weekends with some friends who’ve never been birdwatching. Beautifully constructed web page! I’m book marking this!