(update) The bison were in an area near a ranch house which turns out to be the park residence named on the recently posted map. The bison were actually slightly outside of the park border, according to the map overlaid onto Google Earth. I assume these belong to someone.
Calling from a hole in a bank in the daytime.
Inside a folded cottonwood leaf held together with silk.
Same individual as
On large mossy boulders under/near an oak.
Extreme closeup by @owicki (a different specimen in the same location)
On large mossy boulders under an oak.
Tad in a creek.
Hanging from a silk spider line, ala laundry.
On mossy rock below oak.
Flew onto my shirt at dinner. ~10mm.
3-4mm in diameter
3-4mm diameter. These 3 were all in the same area. I think these may be made by a bee?