Trumpeter Swan 2 Wood Duck 16 Mallard 43 Blue-winged Teal 6 Northern Shoveler 4 Redhead 2 Ring-necked Duck 254 Bufflehead 144 Hooded Merganser 48 Pied-billed Grebe 1 Turkey Vulture 1 Osprey 1 Northern Harrier 1 Sandhill Crane 1 | Tuttle Marsh, IO |