Location in Oregon
Blue is Winter range - Red is Summer range
Purple is Year-round range - Yellow is Migration range

Dusky Flycatcher

Empidonax oberholseri - Common on brushy slopes below 2,000 in Washington. Similar to Hammond's, but has less contrast between breast and belly; tail is slightly longer, back is grayer, underparts less yellow. Few tail or wing flicks. Song is low pitched, no particular sequence Cheepit, chuwee, cheepit, pseet. Call a soft whit.