Indeed, the odds definitely favor Red-eyed, especially when Yellow-green has never been documented in Oregon. It’s worth considering though that, unlike in California, Red-eyed Vireo are very rare on our coast. I could only find 3 records on eBird between Astoria and Brookings. (I’d be curious to learn if there are a few other records outside eBird?). It seems that any "Red-eyed" type vireo that is seen on our coast should be carefully scrutinized, especially between the last week of September and the end of October when the majority of Yellow-greens are reported in CA.