Steve et al,
You always seem to shake a few apples from the trees, even when the farmers and calendar told us they've been picked over.
Beating a dead horse, re the Palm Warbler at Eaton, I would wager it was inside the spruce seeking out hackberry psyllid adults moving from the myriad hackberries nearby to overwinter within the spruce crowns. Your description sounds exactly like what the Grandview Cemetery Cape May Warbler did within spruce near hackberries last October here in Fort Collins.
I would remind everyone Linn Grove Cemetery is in Greeley a couple miles east of Highway 85 off E. 18th Street.
Seems to be a definite dispersal of good numbers of Mountain Chickadees (and perhaps Golden-crowned Kinglets) from the mountains to the plains this autumn.
Dave Leatherman
Fort Collins