After posting the Dickcissel last night, I sat outside from  1130pm-1230am.  
I tried to keep as accurate notes as possible.
 
Green Heron - 2
American Bittern - 1 called 3 times as it passed over
Solitary Sandpiper - 6 estimate, they all flew over at once, were calling  
from several points in the sky
Least Sandpiper - 3 group of 2 and 1 with the Solitarys
Yellow-billed Cuckoo - 17 
Black-billed Cuckoo - 4
Veery - 20
Swainson's Thrush - 4
Wood Thrush - 3
thrush-like notes - 5
Yellow-throated Vireo - 1 gave 4 song phrases from a tree across the  street, 
very similar to the time a Wood Thrush sang in my yard for 15 straight  
minutes at 1am
warbler-like notes - 160 variety of call types, a lot of Blackpoll-like  zeeps
Scarlet Tanager - 5
Dickcissel - 1
Indigo Bunting - 27
Rose-breasted Grosbeak - 2
White-throated Sparrow - 4
Bobolink - 11
 
Quite a different mix from the night before.  
 
Matt Hafner
Bel Air, MD