I went to the Hawk watch today for just 75min and this is the list I came 
up with, though the group I'm sure has much more, seeing they went for 
3hrs lead by Jen Brumfield.

Location:     West Creek Reservation
Observation date:     9/16/08
Number of species:     27

Canada Goose     
Mallard     
Cooper's Hawk     
Red-tailed Hawk     
Killdeer     
Rock Pigeon     
Mourning Dove     
Chimney Swift     
Northern Flicker     
Warbling Vireo     
Blue Jay     
American Crow     
Black-capped Chickadee     
Red-breasted Nuthatch     
House Wren     
American Robin     
Gray Catbird     
European Starling     
Cedar Waxwing     
Magnolia Warbler     
American Redstart     
Common Yellowthroat     
Song Sparrow     
Northern Cardinal     
Rose-breasted Grosbeak     
House Finch     
American Goldfinch     

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