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Illustrated Checklist
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Native and Naturalized (374)
Exotic: Provisional (1)
Exotic: Escapee (17)
Hybrids (17)
- Snow x Ross's Goose (hybrid) Anser caerulescens x rossiiLast observed by Stephen Hurst on 3 Apr 2024
- Swan Goose x Canada Goose (hybrid) Anser cygnoides x Branta canadensisLast observed by Donna Kenski on 14 Mar 2022
- Graylag x Canada Goose (hybrid) Anser anser x Branta canadensisLast observed by Janet Lyons on 3 Oct 2016
- Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensisLast observed by Alder Nichols on 3 Dec 2022
- Snow x Canada Goose (hybrid) Anser caerulescens x Branta canadensisLast observed by Stephen Hurst on 26 Dec 2021
- Blue-winged Teal x Northern Shoveler (hybrid) Spatula discors x clypeataLast observed by beau schaefer on 25 Mar 2024
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by John Ter Louw on 27 Apr 2024
- Mallard x Northern Pintail (hybrid) Anas platyrhynchos x acutaLast observed by Urs Geiser on 19 Nov 2005
- Canvasback x Redhead (hybrid) Aythya valisineria x americanaLast observed by Chuck Fields on 31 Mar 2021
- Redhead x Ring-necked Duck (hybrid) Aythya americana x collarisLast observed by Tom Johnson on 25 Jan 2013
- Common Goldeneye x Hooded Merganser (hybrid) Bucephala clangula x Lophodytes cucullatusLast observed by Adam Sell on 9 Mar 2021
- Laughing x Ring-billed Gull (hybrid) Leucophaeus atricilla x Larus delawarensisLast observed by Eric Walters on 4 Aug 2009
- Herring x Great Black-backed Gull (hybrid) Larus argentatus x marinusLast observed by Lisa Maier on 4 Jan 2018
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Anonymous eBirber on 17 Feb 2024
- Herring x California Gull (hybrid) Larus argentatus x californicusLast observed by Eric Walters on 29 Jan 2011
- Brewster's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F1 hybrid)Last observed by Lin McGrew on 20 May 2020
- Lawrence's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F2 backcross)Last observed by Paul Senner on 9 May 2021
Additional Taxa (111)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Wanda Supanich on 11 May 2024
- Common/Red-breasted Merganser Mergus merganser/serratorLast observed by Melissa Hagerty on 8 May 2024
- Western/Clark's Grebe Aechmophorus occidentalis/clarkiiLast observed by nancy tikalsky on 13 Jan 2013
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Richard Biss on 12 May 2024
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Mike Levin on 8 May 2024
- Red/Red-necked Phalarope Phalaropus fulicarius/lobatusLast observed by Steve Mulhall on 26 Aug 2019
- Long-tailed/Parasitic Jaeger Stercorarius longicaudus/parasiticusLast observed by Andrew Stewart on 9 Sep 2018
- Parasitic/Pomarine Jaeger Stercorarius parasiticus/pomarinusLast observed by Paul Sweet on 14 Oct 2013
- Laughing/Franklin's Gull Leucophaeus atricilla/pipixcanLast observed by Steve Mulhall on 27 Mar 2021
- white-winged gull sp. Larus sp. (white-winged gull sp.)Last observed by Hazem Alkhan on 17 Feb 2024
- Double-crested/Neotropic Cormorant Nannopterum auritum/brasilianumLast observed by Janice Sweet on 3 Jun 2017
- Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violaceaLast observed by Howard Schickler on 10 Sep 2022
- Cooper's Hawk/American Goshawk Accipiter cooperii/atricapillusLast observed by Jeff Skrentny on 23 Nov 2018
- Red-shouldered/Broad-winged Hawk Buteo lineatus/platypterusLast observed by Natalie Solomon on 10 Sep 2023
- diurnal raptor sp. Accipitriformes/Falconiformes sp.Last observed by Robert Aitchison on 14 Apr 2024
- parrot sp. Psittaciformes sp. (parrot sp.)Last observed by IllinoisBeachStatePark Hawkwatch on 5 Sep 2016
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Kristen Cart on 11 May 2024
- Loggerhead/Northern Shrike Lanius ludovicianus/borealisLast observed by IllinoisBeachStatePark Hawkwatch on 23 Oct 2023
- Carolina/Black-capped Chickadee Poecile carolinensis/atricapillusLast observed by Curt Hoagland on 15 Dec 2020
- Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapaLast observed by Celi Dahan on 21 Apr 2024
- House/Purple Finch Haemorhous mexicanus/purpureusLast observed by Nicole Dicop-Hineline on 13 Apr 2024
- Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.Last observed by Candida Abrahamson on 19 Oct 2023
- Rusty/Brewer's Blackbird Euphagus carolinus/cyanocephalusLast observed by Lisa Draper on 5 Apr 2024
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by Jeremy Packer on 2 May 2024
- Bay-breasted/Blackpoll Warbler Setophaga castanea/striataLast observed by Jim Chiropolos on 5 Oct 2023