While looking for wildflows this afternoon along the Susquehanna, I 
found the following:

Lousiana Waterthrush
Yellow-throated Warbler
Yellow-rumped Warbler - many
Palm Warbler (4)
Pine Warbler (2)
Brown Creeper (3)
Winter Wren
both kinglets

The Trilliums are close, but not yet blooming.  Dutchman's Breechs and 
Trout Lilies are everywhere.

Cheers,
Steve Collins
Towson, MD