Courtney and I got permission today to survey the Daly Creek WHMA, owned by Idaho Power Company, south of Richmond in East Baker County. We found at least three LEAST FLYCATCHERS and at least five RED-EYED VIREOS in the extensive Black Cottonwood gallery on the west end of the reservoir of the Powder River south of Richland. One likely pair of Least Flycatchers were seen together, one singing emphatically, and a third Least was located by a double-noted call new to us, and then seen and studied well. All Red-eyed Vireos were singing from high in the Cottonwoods.
The location has the best habitat for Yellow-billed Cuckoo we've seen on our search through Eastern Oregon for some historical breeders (ghosts, as we call them: Upland Sandpiper, Blue Grosbeak, and Yellow-billed Cuckoo). The YB Chats in this location sound unusually like they are imitating several Cuckoo call types, perhaps which they have heard before. We will definitely be back. If anyone wants to bird the location, they should seek permission from the Idaho Power Company.