My guess would be Ash-throated Flycatcher – tail showing reddish brown – reddish-brown primaries. I was searching for this bird along the South Platte River just north of Denver. Hope I made the right choice based on the photo.
Hmmm… I’m not telling until Monday. (I saw this bird near Cortez, but I suspect you can find them along the South Platte too. I’ve also seen them at Lake Pueblo State Park west of the south marina.)
Mountain Plover 
My guess would be Ash-throated Flycatcher – tail showing reddish brown – reddish-brown primaries. I was searching for this bird along the South Platte River just north of Denver. Hope I made the right choice based on the photo.
Hmmm… I’m not telling until Monday. (I saw this bird near Cortez, but I suspect you can find them along the South Platte too. I’ve also seen them at Lake Pueblo State Park west of the south marina.)