Took a 4+ mile "stroll" around Susquehanna State Park from 7am-1pm. I 
wasn't intending such a long walk, but that's what I get for walking 
trails blindly. Had an 18 warbler day - what an outstanding place. Not 
exactly a fallout - I actually did not come across a single flock 
(except for several small groups of yellow-rumps). Still managed lots of 
birds. It was great to watch a female Cerulean Warbler and a 
Prothonotary Warbler together on the same branch at eye level in the 
same binocular view, and then see the the Cerulean chase it off. Also 
had my first robberflies of the year - I'll admit, I had to take a break 
from birding at that point. Below are the species I bothered keeping a 
tally for:

Wood Duck - 3
medium-sized Tern - 8
Caspian Tern - 66
Ruby-throated Hummingbird - 1
Eastern Wood-Pewee - 5
Acadian Flycatcher - 5
Eastern Phoebe - 5
Great Crested Flycatcher - 2
Eastern Kingbird - 4
White-eyed Vireo - 1
Yellow-throated Vireo - 4
Warbling Vireo - 11
Red-eyed Vireo - 34
Wood Thrush - 13
Blue-winged Warbler - 2
Northern Parula - 16
Yellow Warbler - 1
Magnolia Warbler - 2
Black-throated Blue Warbler - 5
Yellow-rumped Warbler - 36
Black-throated Green Warbler - 2
Blackburnian Warbler - 2
Yellow-throated Warbler - 1
Cerulean Warbler - 16
Black-and-white Warbler - 9
American Redstart - 12
Prothonotary Warbler - 3
Worm-eating Warbler - 4
Ovenbird - 8
Louisiana Waterthrush - 6
Kentucky Warbler - 1
Common Yellowthroat - 5
Scarlet Tanager - 7
Indigo Bunting - 7
Orchard Oriole - 7
Baltimore Oriole - 9

Cheers,
Steve Collins
Towson, MD
http://odephoto.com