NPSpecies Report Viewer



		National Park Service U.S. Department of the Interior

		Species List for

		Isle Royale National Park (ISRO)

This species list is a work in progress. It represents information currently in the NPSpecies data system and records are continually being added or updated by National Park Service staff. To report an error or make a suggestion, go to https://irma.nps.gov/npspecies/suggest.


Scientific Name	Preferred Common Names	Park Occurrence	Abundance	Nativeness

Birds
Accipitriformes/Accipitridae
Accipiter cooperii	Cooper's hawk	Present	Rare	Native
Accipiter gentilis	Northern goshawk	Present	Uncommon	Native
Accipiter striatus	Sharp-shinned hawk	Present	Uncommon	Native
Aquila chrysaetos	Golden eagle	Present	Occasional	Native
Buteo jamaicensis	Red-tailed hawk	Present	Rare	Native
Buteo lagopus	Rough-legged hawk	Present	Occasional	Native
Buteo lineatus	Red-shouldered hawk	Present	Occasional	Native
Buteo platypterus	Broad-winged hawk	Present	Common	Native
Circus cyaneus	Marsh hawk, Northern harrier	Present	Uncommon	Native
Haliaeetus leucocephalus	Bald eagle	Present	Uncommon	Native
Ictinia mississippiensis	Mississippi kite	Present	Unknown	Native
Accipitriformes/Cathartidae
Cathartes aura	Turkey vulture	Present	Occasional	Native
Accipitriformes/Pandionidae
Pandion haliaetus	Osprey	Present	Uncommon	Native
Anseriformes/Anatidae
Aix sponsa	Wood duck	Present	Uncommon	Native
Anas acuta	Common pintail, Northern pintail	Present	Occasional	Native
Anas americana	American wigeon, Baldpate	Present	Occasional	Native
Anas clypeata	Northern shoveler, Shoveler	Present	Occasional	Native
Anas crecca	Green-winged teal	Present	Uncommon	Native
Anas discors	Blue-winged teal	Present	Uncommon	Native
Anas platyrhynchos	Mallard	Present	Uncommon	Native
Anas rubripes	American black duck	Present	Common	Native
Anas rubripes X platyrhynchos	American black mallard, Mallard X Black duck hybrid	Present	Occasional	Native
Anas strepera	Gadwall	Present	Occasional	Native
Anser albifrons	Greater white-fronted goose	Present	Unknown	Native
Aythya affinis	Lesser scaup	Present	Common	Native
Aythya americana	Redhead	Present	Occasional	Native
Aythya collaris	Ring-necked duck	Present	Uncommon	Native
Aythya marila	Greater scaup	Present	Common	Native
Aythya valisineria	Canvasback	Present	Occasional	Native
Branta canadensis	Canada goose	Present	Common	Native
Bucephala albeola	Bufflehead	Present	Common	Native
Bucephala clangula	Common goldeneye	Present	Common	Native
Chen caerulescens	Snow goose	Present	Uncommon	Native
Clangula hyemalis	Long-tailed duck, Oldsquaw	Present	Common	Native
Cygnus columbianus	Tundra swan, Whistling swan	Present	Occasional	Native
Cygnus olor	Mute swan	Present	Occasional	Non-native
Histrionicus histrionicus	Harlequin duck	Present	Unknown	Native
Lophodytes cucullatus	Hooded merganser	Present	Uncommon	Native
Melanitta fusca	White-winged scoter	Present	Uncommon	Native
Melanitta nigra	Black scoter, Common scoter	Present	Occasional	Native
Melanitta perspicillata	Surf scoter	Present	Rare	Native
Mergus merganser	Common merganser	Present	Common	Native
Mergus serrator	Red-breasted merganser	Present	Common	Native
Oxyura jamaicensis	Ruddy duck	Present	Occasional	Native
Apodiformes/Apodidae
Chaetura pelagica	Chimney swift	Present	Uncommon	Native
Apodiformes/Trochilidae
Archilochus colubris	Ruby-throated hummingbird	Present	Uncommon	Native
Caprimulgiformes/Caprimulgidae
Caprimulgus vociferus	Whip-poor-will	Present	Occasional	Native
Chordeiles minor	Common nighthawk	Present	Uncommon	Native
Charadriiformes/Charadriidae
Charadrius semipalmatus	Semipalmated plover	Present	Occasional	Native
Charadrius vociferus	Killdeer	Present	Uncommon	Native
Pluvialis dominica	American golden plover, Lesser golden plover	Present	Occasional	Native
Pluvialis squatarola	Black-bellied plover	Present	Uncommon	Native
Charadriiformes/Laridae
Chlidonias niger	Black tern	Present	Occasional	Native
Larus argentatus	Herring gull	Present	Common	Native
Larus delawarensis	Ring-billed gull	Present	Uncommon	Native
Larus glaucoides	Iceland gull	Present	Occasional	Native
Larus hyperboreus	Glaucous gull	Present	Occasional	Native
Larus philadelphia	Bonaparte's gull	Present	Uncommon	Native
Sterna caspia	Caspian tern	Present	Occasional	Native
Sterna hirundo	Common tern	Present	Rare	Native
Charadriiformes/Scolopacidae
Actitis macularia	Spotted sandpiper	Present	Common	Native
Arenaria interpres	Ruddy turnstone	Present	Uncommon	Native
Calidris alba	Sanderling	Present	Occasional	Native
Calidris alpina	Dunlin	Present	Occasional	Native
Calidris bairdii	Baird's sandpiper	Present	Uncommon	Native
Calidris fuscicollis	White-rumped sandpiper	Present	Uncommon	Native
Calidris melanotos	Pectoral sandpiper	Present	Occasional	Native
Calidris minutilla	Least sandpiper	Present	Uncommon	Native
Calidris pusilla	Semipalmated sandpiper	Present	Occasional	Native
Gallinago gallinago	Common snipe	Present	Common	Native
Limnodromus griseus	Short-billed dowitcher	Present	Uncommon	Native
Limnodromus scolopaceus	Long-billed dowitcher	Present	Uncommon	Native
Limosa fedoa	Marbled godwit	Present	Occasional	Native
Limosa haemastica	Hudsonian godwit	Present	Uncommon	Native
Numenius phaeopus	Whimbrel	Present	Occasional	Native
Phalaropus lobatus	Red-necked phalarope	Present	Unknown	Native
Scolopax minor	American woodcock	Present	Uncommon	Native
Tringa flavipes	Lesser yellowlegs	Present	Uncommon	Native
Tringa melanoleuca	Greater yellowlegs	Present	Occasional	Native
Tringa solitaria	Solitary sandpiper	Present	Uncommon	Native
Charadriiformes/Stercorariidae
Stercorarius longicaudus	Long-tailed jaeger	Present	Occasional	Native
Columbiformes/Columbidae
Columba livia	Feral pigeon, Rock dove	Present	Occasional	Non-native
Zenaida macroura	Mourning dove	Present	Uncommon	Native
Coraciiformes/Alcedinidae
Ceryle alcyon	Belted kingfisher	Present	Uncommon	Native
Cuculiformes/Cuculidae
Coccyzus americanus	Yellow-billed cuckoo	Present	Occasional	Native
Coccyzus erythropthalmus	Black-billed cuckoo	Present	Rare	Native
Falconiformes/Falconidae
Falco columbarius	Merlin, Pigeon hawk	Present	Uncommon	Native
Falco peregrinus	Peregrine falcon	Present	Occasional	Native
Falco rusticolus	Gyrfalcon	Present	Occasional	Native
Falco sparverius	American kestrel, Sparrow hawk	Present	Uncommon	Native
Gaviiformes/Gaviidae
Gavia adamsii	Yellow-billed loon	Probably Present		Native
Gavia immer	Common loon	Present	Common	Native
Gavia stellata	Red-throated loon	Present	Occasional	Native
Gruiformes/Gruidae
Grus canadensis	Sandhill crane	Present	Uncommon	Native
Gruiformes/Rallidae
Fulica americana	American coot	Present	Occasional	Native
Porzana carolina	Sora	Present	Rare	Native
Rallus limicola	Virginia rail	Present	Occasional	Native
Passeriformes/Alaudidae
Eremophila alpestris	Horned lark	Present	Uncommon	Native
Passeriformes/Bombycillidae
Bombycilla cedrorum	Cedar waxwing	Present	Common	Native
Passeriformes/Calcariidae
Calcarius lapponicus	Lapland longspur	Present	Occasional	Native
Calcarius pictus	Smith's longspur	Present	Unknown	Native
Plectrophenax nivalis	Snow bunting	Present	Common	Native
Passeriformes/Cardinalidae
Cardinalis cardinalis	Northern cardinal	Present	Unknown	Native
Passerina cyanea	Indigo bunting	Present	Uncommon	Native
Pheucticus ludovicianus	Rose-breasted grosbeak	Present	Uncommon	Native
Piranga olivacea	Scarlet tanager	Present	Uncommon	Native
Passeriformes/Certhiidae
Certhia americana	Brown creeper	Present	Common	Native
Passeriformes/Corvidae
Corvus brachyrhynchos	American crow	Present	Common	Native
Corvus corax	Common raven	Present	Common	Native
Cyanocitta cristata	Blue jay	Present	Common	Native
Perisoreus canadensis	Canada jay, Gray jay, Whiskeyjack	Present	Common	Native
Pica hudsonia	Black-billed magpie	Present	Occasional	Native
Passeriformes/Fringillidae
Carduelis flammea	Common redpoll	Present	Occasional	Native
Carduelis hornemanni	Hoary redpoll	Probably Present		Native
Carduelis pinus	Pine siskin	Present	Uncommon	Native
Carduelis tristis	American goldfinch	Present	Uncommon	Native
Carpodacus purpureus	Purple finch	Present	Rare	Native
Coccothraustes vespertinus	Evening grosbeak	Present	Rare	Native
Loxia curvirostra	Red crossbill	Present	Occasional	Native
Loxia leucoptera	White-winged crossbill	Present	Uncommon	Native
Pinicola enucleator	Pine grosbeak	Present	Uncommon	Native
Passeriformes/Hirundinidae
Hirundo rustica	Barn swallow	Present	Rare	Native
Petrochelidon pyrrhonota	Cliff swallow	Present	Occasional	Native
Progne subis	Purple martin	Probably Present		Native
Riparia riparia	Bank swallow	Present	Occasional	Native
Stelgidopteryx serripennis	Northern rough-winged swallow	Present	Occasional	Native
Tachycineta bicolor	Tree swallow	Present	Uncommon	Native
Passeriformes/Icteridae
Agelaius phoeniceus	Red-winged blackbird	Present	Uncommon	Native
Dolichonyx oryzivorus	Bobolink	Present	Occasional	Native
Euphagus carolinus	Rusty blackbird	Present	Occasional	Native
Euphagus cyanocephalus	Brewer's blackbird	Present	Occasional	Native
Icterus galbula	Baltimore oriole, Northern oriole	Present	Occasional	Native
Molothrus ater	Brown-headed cowbird	Present	Rare	Native
Quiscalus quiscula	Common grackle	Present	Uncommon	Native
Sturnella magna	Eastern meadowlark	Present	Rare	Native
Xanthocephalus xanthocephalus	Yellow-headed blackbird	Present	Occasional	Native
Passeriformes/Laniidae
Lanius excubitor	Northern shrike	Present	Uncommon	Native
Lanius ludovicianus	Loggerhead shrike	Present	Unknown	Native
Passeriformes/Mimidae
Dumetella carolinensis	Gray catbird	Present	Rare	Native
Mimus polyglottos	Northern mockingbird	Present	Occasional	Native
Toxostoma rufum	Brown thrasher	Present	Uncommon	Native
Passeriformes/Motacillidae
Anthus rubescens	American pipit, Water pipit	Present	Rare	Native
Passeriformes/Paridae
Poecile atricapillus	Black-capped chickadee, Chickadee	Present	Common	Native
Poecile hudsonica	Boreal Chickadee	Present	Rare	Native
Passeriformes/Parulidae
Dendroica caerulescens	Black-throated blue warbler	Present	Common	Native
Dendroica castanea	Bay-breasted warbler	Present	Rare	Native
Dendroica cerulea	Cerulean warbler	Present	Unknown	Native
Dendroica coronata	Yellow-rumped warbler	Present	Common	Native
Dendroica fusca	Blackburnian warbler	Present	Uncommon	Native
Dendroica kirtlandii	Kirtland's warbler	Present	Unknown	Native
Dendroica magnolia	Magnolia warbler	Present	Abundant	Native
Dendroica palmarum	Palm warbler	Present	Common	Native
Dendroica pensylvanica	Chestnut-sided warbler	Present	Common	Native
Dendroica petechia	Yellow warbler	Present	Rare	Native
Dendroica pinus	Pine warbler	Present	Rare	Native
Dendroica striata	Blackpoll warbler	Present	Uncommon	Native
Dendroica tigrina	Cape May warbler	Present	Uncommon	Native
Dendroica virens	Black-throated green warbler	Present	Abundant	Native
Geothlypis trichas	Common yellowthroat	Present	Uncommon	Native
Mniotilta varia	Black-and-white warbler	Present	Uncommon	Native
Oporornis agilis	Connecticut warbler	Present	Rare	Native
Oporornis philadelphia	Mourning warbler	Present	Uncommon	Native
Parula americana	Northern parula, Parula warbler	Present	Uncommon	Native
Seiurus aurocapillus	Ovenbird	Present	Abundant	Native
Seiurus noveboracensis	Northern waterthrush	Present	Uncommon	Native
Setophaga ruticilla	American redstart	Present	Common	Native
Vermivora celata	Orange-crowned warbler	Present	Uncommon	Native
Vermivora chrysoptera	Golden-winged warbler	Present	Occasional	Native
Vermivora peregrina	Tennessee warbler	Present	Common	Native
Vermivora ruficapilla	Nashville warbler	Present	Abundant	Native
Wilsonia canadensis	Canada warbler	Present	Uncommon	Native
Wilsonia pusilla	Wilson's warbler	Present	Common	Native
Passeriformes/Passerellidae
Ammodramus leconteii	Le Conte's sparrow	Present	Occasional	Native
Junco hyemalis	Dark-eyed junco, Northern junco, Slate-colored junco	Present	Uncommon	Native
Melospiza georgiana	Swamp sparrow	Present	Uncommon	Native
Melospiza lincolnii	Lincoln's sparrow	Present	Occasional	Native
Melospiza melodia	Song sparrow	Present	Common	Native
Passerculus sandwichensis	Savannah sparrow	Present	Uncommon	Native
Passerella iliaca	Fox sparrow	Present	Uncommon	Native
Pipilo erythrophthalmus	Eastern towhee, Rufous-sided towhee	Present	Rare	Native
Pooecetes gramineus	Vesper sparrow	Present	Rare	Native
Spizella arborea	American tree sparrow	Present	Common	Native
Spizella pallida	Clay-colored sparrow	Present	Occasional	Native
Spizella passerina	Chipping sparrow	Present	Common	Native
Spizella pusilla	Field sparrow	Present	Occasional	Native
Zonotrichia albicollis	White-throated sparrow	Present	Abundant	Native
Zonotrichia leucophrys	White-crowned sparrow	Present	Uncommon	Native
Zonotrichia querula	Harris's sparrow	Present	Occasional	Native
Passeriformes/Passeridae
Passer domesticus	House sparrow	Present	Occasional	Non-native
Passeriformes/Regulidae
Regulus calendula	Ruby-crowned kinglet	Present	Uncommon	Native
Regulus satrapa	Golden-crowned kinglet	Present	Common	Native
Passeriformes/Sittidae
Sitta canadensis	Red-breasted nuthatch	Present	Common	Native
Sitta carolinensis	White-breasted nuthatch	Present	Rare	Native
Passeriformes/Sturnidae
Sturnus vulgaris	European starling, Starling	Present	Rare	Non-native
Passeriformes/Troglodytidae
Cistothorus palustris	Marsh wren	Present	Rare	Native
Cistothorus platensis	Sedge wren	Present	Rare	Native
Troglodytes aedon	House wren	Present	Rare	Native
Troglodytes troglodytes	Winter wren	Present	Common	Native
Passeriformes/Turdidae
Catharus fuscescens	Veery	Present	Uncommon	Native
Catharus guttatus	Hermit thrush	Present	Common	Native
Catharus minimus	Gray-cheeked thrush	Present	Uncommon	Native
Catharus ustulatus	Swainson's thrush	Present	Common	Native
Hylocichla mustelina	Wood thrush	Present	Rare	Native
Sialia sialis	Eastern bluebird	Present	Rare	Native
Turdus migratorius	American robin	Present	Common	Native
Passeriformes/Tyrannidae
Contopus cooperi	Olive-sided flycatcher	Present	Uncommon	Native
Contopus sordidulus	Western Wood-pewee	Present	Unknown	Native
Contopus virens	Eastern Wood-pewee, Pewee	Present	Rare	Native
Empidonax alnorum	Alder flycatcher	Present	Common	Native
Empidonax flaviventris	Yellow-bellied flycatcher	Present	Common	Native
Empidonax minimus	Least flycatcher	Present	Uncommon	Native
Empidonax traillii	Willow flycatcher	Present	Unknown	Native
Myiarchus crinitus	Great crested flycatcher	Present	Occasional	Native
Sayornis phoebe	Eastern phoebe	Present	Rare	Native
Tyrannus tyrannus	Eastern kingbird	Present	Rare	Native
Tyrannus verticalis	Western kingbird	Present	Occasional	Native
Passeriformes/Vireonidae
Vireo flavifrons	Yellow-throated vireo	Present	Occasional	Native
Vireo gilvus	Warbling vireo	Present	Occasional	Native
Vireo griseus	White-eyed vireo	Present	Unknown	Native
Vireo olivaceus	Red-eyed vireo	Present	Abundant	Native
Vireo philadelphicus	Philadelphia vireo	Present	Rare	Native
Vireo solitarius	Blue-headed vireo, Solitary vireo	Present	Uncommon	Native
Pelecaniformes/Ardeidae
Ardea herodias	Great blue heron	Present	Common	Native
Botaurus lentiginosus	American bittern	Present	Uncommon	Native
Nycticorax nycticorax	Black-crowned night heron	Present	Occasional	Native
Pelecaniformes/Pelecanidae
Pelecanus erythrorhynchos	American white pelican	Present	Occasional	Native
Piciformes/Picidae
Colaptes auratus	Common flicker, Northern flicker, Yellow-shafted flicker	Present	Common	Native
Dryocopus pileatus	Pileated woodpecker	Present	Common	Native
Melanerpes erythrocephalus	Red-headed woodpecker	Present	Occasional	Native
Picoides arcticus	Black-backed woodpecker	Present	Rare	Native
Picoides pubescens	Downy woodpecker	Present	Common	Native
Picoides tridactylus	Three-toed woodpecker	Present	Rare	Native
Picoides villosus	Hairy woodpecker	Present	Common	Native
Sphyrapicus varius	Yellow-bellied sapsucker	Present	Uncommon	Native
Podicipediformes/Podicipedidae
Podiceps auritus	Horned grebe	Present	Uncommon	Native
Podiceps grisegena	Red-necked grebe	Present	Uncommon	Native
Podilymbus podiceps	Pied-billed grebe	Present	Uncommon	Native
Strigiformes/Strigidae
Aegolius acadicus	Northern saw-whet owl	Present	Rare	Native
Aegolius funereus	Boreal owl	Present	Unknown	Native
Asio flammeus	Short-eared owl	Present	Occasional	Native
Asio otus	Long-eared owl	Present	Occasional	Native
Bubo virginianus	Great horned owl	Present	Uncommon	Native
Nyctea scandiaca	Snowy owl	Present	Occasional	Native
Strix nebulosa	Great gray owl	Probably Present		Native
Strix varia	Barred owl	Present	Occasional	Native
Surnia ulula	Hawk owl	Present	Occasional	Native
Suliformes/Phalacrocoracidae
Phalacrocorax auritus	Double-crested cormorant	Present	Common	Native


Species In Review - proposed or provisional records needing additional review
Birds
Anseriformes/Anatidae
Cygnus buccinator	Trumpeter swan	Unconfirmed		Native
Charadriiformes/Scolopacidae
Bartramia longicauda	Upland plover, Upland sandpiper	Unconfirmed		Native
Calidris canutus	Red knot	Unconfirmed		Native
Limnodromus	Dowitcher
Phalaropus tricolor	Wilson's phalarope	Unconfirmed		Native
Galliformes/Phasianidae
Tympanuchus phasianellus	Sharp-tailed grouse	Not In Park (Historical)		Native
Passeriformes/Bombycillidae
Bombycilla garrulus	Bohemian waxwing	Unconfirmed		Native
Passeriformes/Cardinalidae
Spiza americana	Dickcissel	Not In Park (Historical)		Native
Passeriformes/Icteridae
Sturnella neglecta	Western meadowlark	Unconfirmed		Native
Passeriformes/Icteriidae
Icteria virens	Yellow-breasted chat	Unconfirmed		Native
Passeriformes/Passerellidae
Chondestes grammacus	Lark sparrow	Not In Park (Historical)		Native
Pelecaniformes/Ardeidae
Butorides striatus	Green heron, Green-backed heron	Not In Park (Historical)		Native
Podicipediformes/Podicipedidae
Aechmophorus occidentalis	Western grebe	Unconfirmed		Native
Strigiformes/Strigidae
Otus asio	Eastern screech-owl	Unconfirmed		Native


Report Species Count: 261

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 4/8/2026 11:04:58 AM

Definitions


Term	Definition	Comments
Present in Park	Species occurrence in park is documented and assumed to be extant.	Extremely high confidence that the species occurs in the park for all or part of the year. Evidence, in the form of a current, verifiable reference, voucher or observation, readily available.
Probably Present	Documented occurrences of the species in the park and/or in the adjoining region of the park give reason to suspect that it probably occurs within the park.	Very high confidence that the species occurs in the park. Evidence may exist in NPSpecies, but may not be considered current or reliable enough to elevate the status to Present in Park. Efforts should be made to obtain current, verifiable evidence to elevate the status to “Present in Park.” If reasonable efforts to obtain current, verifiable evidence are unsuccessful, then the Occurrence should be changed to Unconfirmed or Not in Park, as applicable.
Unconfirmed	Attributed to the park based on weak ("unconfirmed record") or no evidence, giving minimal indication of the species' occurrence in the park.	Verifiable evidence is not considered sufficient enough to elevate the status to “Probably Present,” nor current enough to elevate the status to “Present in Park.” Efforts should be made to obtain current, verifiable evidence in NPSpecies to elevate the occurrence value to “Present in Park.” If reasonable efforts to obtain current, verifiable evidence are unsuccessful, status should be changed to Not Present.
Not Present	Species is not known to occur in park. Species may have occurred in the park historically, is currently known to occur in areas adjacent to the park, or is a potential long-distance invader (e.g., zebra mussels, other invasive exotics). Designation can also be used for T&E or other high-interest species whose identified range encompasses the park, but that are confirmed not present in the park.
Species in Review	These species records are provisional and are undergoing additional review.

Species Full List

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4/8/2026 11:04:58 AM

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