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This list of birds of Illinois includes every wild bird species recorded in the U.S. state of Illinois, based on the list published by the Illinois Ornithological Society. Only birds that are considered to have established, self-sustaining, wild populations in Illinois are included on this list. This means that birds that are considered probable escapees, although they may have been sighted flying free in Illinois, are not included. This list is presented in taxonomic order and follows ''The Check-list of North American Birds'' (7th edition, 1998) published by the American Ornithologists' Union. The family accounts at the beginning of each heading reflect this taxonomy, as do the species counts in each family account. The following codes are used to designate some species: *(A) Accidental - recorded in no more than 2 of the last 10 years and unlikely to occur regularly *(E) Extinct - a recent species that no longer exists *(I) Introduced - population established solely as result of direct or indirect human intervention; synonymous with non-native and non-indigenous __NOTOC__ ==Ducks, geese and swans== Order: AnseriformesFamily: Anatidae The family Anatidae includes the ducks and most duck-like waterfowl, such as geese and swans. These birds are adapted to an aquatic existence with webbed feet, bills which are flattened to a greater or lesser extent, and feathers that are excellent at shedding water due to special oils. There are 45 Illinois species. *Black-bellied whistling-duck, ''Dendrocygna autumnalis'' (A) *Fulvous whistling-duck, ''Dendrocygna bicolor'' (A) *Greater white-fronted goose, ''Anser albifrons'' *Snow goose, ''Chen caerulescens'' *Ross's goose, ''Chen rossii'' *Brant, ''Branta bernicla'' *Cackling goose, ''Branta hutchinsii'' *Canada goose, ''Branta canadensis'' *Mute swan, ''Cygnus olor'' (I) *Trumpeter swan, ''Cygnus buccinator'' *Tundra swan, ''Cygnus columbianus'' *Wood duck, ''Aix sponsa'' *Gadwall, ''Anas strepera'' *Eurasian wigeon, ''Anas penelope'' *American wigeon, ''Anas americana'' *American black duck, ''Anas rubripes'' *Mallard, ''Anas platyrhynchos'' *Mottled duck, ''Anas fulvigula'' (A) *Blue-winged teal, ''Anas discors'' *Cinnamon teal, ''Anas cyanoptera'' *Northern shoveler, ''Anas clypeata'' *Northern pintail, ''Anas acuta'' *Garganey, ''Anas querquedula'' (A) *Green-winged teal, ''Anas crecca'' *Canvasback, ''Aythya valisineria'' *Redhead, ''Aythya americana'' *Ring-necked duck, ''Aythya collaris'' *Tufted duck, ''Aythya fuligula'' (A) *Greater scaup, ''Aythya marila'' *Lesser scaup, ''Aythya affinis'' *King eider, ''Somateria spectabilis'' *Common eider, ''Somateria mollissima'' (A) *Harlequin duck, ''Histrionicus histrionicus'' *Surf scoter, ''Melanitta perspicillata'' *White-winged scoter, ''Melanitta fusca'' *Black scoter, ''Melanitta americana'' *Long-tailed duck, ''Clangula hyemalis'' *Bufflehead, ''Bucephala albeola'' *Common goldeneye, ''Bucephala clangula'' *Barrow's goldeneye, ''Bucephala islandica'' *Smew, ''Mergellus albellus'' *Hooded merganser, ''Lophodytes cucullatus'' *Common merganser, ''Mergus merganser'' *Red-breasted merganser, ''Mergus serrator'' *Ruddy duck, ''Oxyura jamaicensis'' 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「List of birds of Illinois」の詳細全文を読む スポンサード リンク
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