CLOSED: Prarie Warbler?

1st of 2 pics.

2nd. shot

Palm Warbler...the Prarie also pumps its tail like the Palm.

Thank you Ned. The immature female Prairie Warbler and fall Palm Warbler look a lot alike.

Two other useful points:
1: in Palm, the undertail coverts are yellower than the belly; in Prairie, the belly is the yellower
2: the black band at the base of the tail from below; Prairie is all-white there

Resin

Thanks, Resin. I added that info to my bird book.