Mallard x American Black Duck (hybrid)
Herring x Lesser Black-backed Gull (hybrid)
Redhead x scaup sp. (hybrid)
Domestic goose sp. x Canada Goose (hybrid)
Ring-necked Duck x scaup sp. (hybrid)
Herring x Great Black-backed Gull (hybrid)
Herring x Glaucous Gull (hybrid)
Graylag x Swan Goose (hybrid)
Graylag x Canada Goose (hybrid)
Snow x Canada Goose (hybrid)
Ring-necked Duck x Lesser Scaup (hybrid)
Eurasian x American Wigeon (hybrid)
Domestic goose sp. (Domestic type)
Bay-breasted/Blackpoll Warbler
Mallard/American Black Duck
Golden-winged/Blue-winged Warbler
Alder/Willow Flycatcher (Traill's Flycatcher)
Greater/Lesser Yellowlegs
Louisiana/Northern Waterthrush
Common/Red-breasted Merganser
Philadelphia/Warbling Vireo
Common/Barrow's Goldeneye
Sharp-shinned/Cooper's Hawk