From leader Tom Stephenson:
Hi Peter,
Another great group, about 35 people, very good weather and a good number of birds. 
Highlights might be Summer Tanager, Least, Traill's sp, and Yellow-bellied Flycatchers, 17 sp of warblers including Cape May, Blackburnian, Canada, a flyover Common Loon, and Indigo Bunting.
Here's the list.
Best regards,
Tom
Common Loon 
Double-crested Cormorant 
Great Egret 
Green Heron 
Black-crowned Night-Heron 
Canada Goose 
Mute Swan 
Wood Duck 
Mallard 
Ruddy Duck 
Red-tailed Hawk 
Spotted Sandpiper 
Ring-billed Gull 
Herring Gull 
Rock Dove 
Mourning Dove 
Chimney Swift 
Ruby-throated Hummingbird 
Red-bellied Woodpecker 
Downy Woodpecker 
Northern Flicker 
Eastern Wood-Pewee 
Yellow-bellied Flycatcher 
Willow Flycatcher (traill's sp) 
Least Flycatcher 
Great Crested Flycatcher 
Eastern Kingbird 
Yellow-throated Vireo 
Warbling Vireo 
Red-eyed Vireo 
Blue Jay 
American Crow 
Tree Swallow 
Barn Swallow 
Black-capped Chickadee 
Tufted Titmouse 
Carolina Wren 
House Wren 
Veery 
Swainson's Thrush 
Wood Thrush 
American Robin 
Gray Catbird 
European Starling 
Cedar Waxwing 
Nashville Warbler 
Northern Parula 
Yellow Warbler 
Chestnut-sided Warbler 
Magnolia Warbler 
Cape May Warbler 
Black-throated Blue Warbler 
Yellow-rumped Warbler 
Black-throated Green Warbler 
Blackburnian Warbler 
Prairie Warbler 
Blackpoll Warbler 
Black-and-white Warbler 
American Redstart 
Ovenbird 
Northern Waterthrush 
Canada Warbler 
Summer Tanager 
Scarlet Tanager 
Eastern Towhee 
Song Sparrow 
Northern Cardinal 
Rose-breasted Grosbeak 
Indigo Bunting 
Red-winged Blackbird 
Common Grackle 
Brown-headed Cowbird 
Orchard Oriole 
Baltimore Oriole 
House Sparrow