WATERFOWL (Order Anseriformes, Family Anatidae)

Snow x Ross’s Goose (Anser caerulescens x rossii)
Snow x Cackling Goose (Anser caerulescens x Branta hutchinsii)
Ross’s Goose x Cackling Goose  (Anser rossii x Branta hutchinsii)
Greater White-fronted x Cackling Goose (Anser albifrons x Branta hutchinsii)
Greater White-fronted x Canada Goose (Anser albifrons x Branta canadensis)
[Swan X Graylag Goose] ( Anser cygnoides x anser)
Swan/Graylag Goose (domestic type) x Canada Goose ((Anser cygnoides x anser) x Branta canadensis)
Barnacle x Cackling Goose (Branta leucopsis x hutchinsii)

Blue-winged x Cinnamon Teal (Spatula discors x cyanoptera)
Blue-winged Teal x Northern Shoveler (Spatula discors x clypeata)
Blue-winged x Green-winged Teal (Spatula discors x Anas crecca)
Northern Shoveler X Gadwall (Spatula clypeata x Mareca strepera)
Gadwall x Mallard (Mareca strepera x Anas platyrhynchos)
Eurasian x American Wigeon (Mareca penelope x americana)
American Wigeon x Mallard (Mareca americana x Anas platyrhynchos)
Mallard x American Black Duck (Anas platyrhynchos x rubripes)
Mallard x Mexican Duck (Anas platyrhynchos x diaza)
Mallard x Northern Pintail (Anas platyrhynchos x acuta)

Canvasback x Redhead (Aythya valisineria x americana)
Redhead x Ring-necked Duck (Aythya americana x collaris)
Ring-necked Duck x Lesser Scaup (Aythya collaris x affinis)
[Ring-necked x Tufted Duck] (Aythya collaris x fuligula)
Tufted Duck x Lesser Scaup (Aythya fuligula x affinis)
Bufflehead x Common Goldeneye (Bucephala albeola x clangula)
Common x Barrow’s Goldeneye (Bucephala clangula x islandica)
Common Goldeneye x Hooded Merganser (Bucephala clangula x Lophodytes cucullatus)

PARTRIDGES, GROUSE, TURKEY, & OLD WORLD QUAIL (Order Galliformes, Family Phasianidae)

Sharp-tailed Grouse x Greater Prairie-Chicken (Tympanuchus phasianellus x cupido)

PIGEONS & DOVES (Order Columbiformes, Family Columbidae)

Eurasian Collared-Dove x Mourning Dove (Streptopelia decaocto x Zenaida macroura)

HUMMINGBIRDS (Order Apodiformes, Family Trochilidae)

Broad-tailed x Ruby-throated Hummingbirds (Archilochus colubris x Selasphorus platycercus)

CRANES (Order Gruiformes, Family Gruidae)

Sandhill x Common Crane (Antigone canadensis x Grus grus)

GULLS, TERNS, & SKIMMERS (Order Charadriiformes, Family Laridae)

Herring x Glaucous-winged Gull (Larus argentatus x glaucescens)
Herring X Glaucous Gull (Larus argentatus x hyperboreus)

CORMORANTS (Order Suliformes, Family Phalacrocoracidae)

Neotropic x Double-crested Cormorant (Phalacrocorax auritus x brasilianus)

IBISES & SPOONBILLS (Order Pelecaniformes, Family Threskiornithidae)

Glossy x White-faced Ibis (Plegadis falcinellus x chihi)

WOODPECKERS & ALLIES (Order Piciformes, Family Picidae)

Yellow-bellied x Red-naped Sapsucker (Sphyrapicus varius x nuchalis)
Downy x Hairy Woodpecker (Dryobates pubescens x villosus)

TYRANT FLYCATCHERS (Order Passeriformes, Family Tyrannidae)

[Western x Eastern Wood-Pewee (Contopus sordidulus x virens)]
[Western Kingbird x Scissor-tailed Flycatcher (Tyrannus verticalis x  forficatus)]

CHICKADEES & TITMICE (Order Passeriformes, Family Paridae)

[Black-capped x Mountain Chickadee (Poecile atricapillus x gambeli)]

THRUSHES (Order Passeriformes, Family Turdidae)

Eastern x Mountain Bluebird (Sialia sialis x currucoides)

TOWHEES & NEW WORLD SPARROWS (Order Passeriformes, Family Passerellidae)

Spotted x Eastern Towhee (Pipilo maculatus x erythrophthalmus)

BLACKBIRDS, BOBOLINKS, MEADOWLARKS, & ORIOLES (Order Passeriformes, Family Icteridae)

Bullock’s x Baltimore Oriole (Icterus bullockii x galbula)

WOOD-WARBLERS (Order Passeriformes, Family Parulidae)

Golden-winged x Blue-winged Warbler (Vermivora chrysoptera x cyanoptera)
Townsend’s x Black-throated Green Warbler (Setophaga townsendi x virens)

CARDINALS, GROSBEAKS, & NEW WORLD BUNTINGS (Order Passeriformes, Family Cardinalidae)

Summer x Scarlet Tanager (Piranga rubra x olivacea)
Rose-breasted x Black-headed Grosbeak (Pheucticus ludovicianus x melanocephalus)
Lazuli x Indigo Bunting (Passerina amoena x cyanea)