species
244.
Mallard x American Black Duck (hybrid)
Brewster's Warbler (hybrid)
Golden-winged x Blue-winged Warbler (hybrid)
Graylag x Swan Goose (hybrid)
Dark-eyed Junco x White-throated Sparrow (hybrid)
Lawrence's Warbler (hybrid)
Alder/Willow Flycatcher (Traill's Flycatcher)
Louisiana/Northern Waterthrush
Great/Double-crested Cormorant
Bay-breasted/Blackpoll Warbler
Mallard/American Black Duck
Yellow-billed/Black-billed Cuckoo