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Winnebago
Illustrated Checklist
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Native and Naturalized (318)
Exotic: Escapee (4)
Hybrids (8)
- Gadwall x Mallard (hybrid) Mareca strepera x Anas platyrhynchosLast observed by Janet Macklin on 2 Apr 2018
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Anonymous eBirder on 4 Apr 2024
- Ring-necked Duck x Lesser Scaup (hybrid) Aythya collaris x affinisLast observed by Stuart Malcolm on 14 Apr 2017
- Common x Barrow's Goldeneye (hybrid) Bucephala clangula x islandicaLast observed by Kirk Roth on 9 Mar 2007
- Common Goldeneye x Hooded Merganser (hybrid) Bucephala clangula x Lophodytes cucullatusLast observed by Stuart Malcolm on 18 Jan 2021
- Herring x Great Black-backed Gull (hybrid) Larus argentatus x marinusLast observed by Stuart Malcolm on 27 Feb 2018
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Ethan Gyllenhaal on 11 Feb 2012
- Brewster's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F1 hybrid)Last observed by Tom Ziebell on 3 Sep 2023
Additional Taxa (79)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Stuart Malcolm on 1 Mar 2020
- Trumpeter/Tundra Swan Cygnus buccinator/columbianusLast observed by Anonymous eBirder on 30 Mar 2024
- Mallard/American Black Duck Anas platyrhynchos/rubripesLast observed by Pauline Delfeld on 1 Apr 2021
- Common/Red-breasted Merganser Mergus merganser/serratorLast observed by Anonymous eBirder on 24 Mar 2024
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Kelli Bahls on 5 Aug 2023
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Kelli Bahls on 24 Sep 2023
- Lesser/Greater Yellowlegs Tringa flavipes/melanoleucaLast observed by Anonymous eBirder on 11 May 2023
- Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violaceaLast observed by Peter Fissel on 19 Jun 2013
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Anonymous eBirder on 12 Mar 2024
- Cooper's Hawk/American Goshawk Accipiter cooperii/atricapillusLast observed by Linda Foust on 15 Feb 2020
- Red-shouldered/Broad-winged Hawk Buteo lineatus/platypterusLast observed by Tom Ziebell on 26 Apr 2022
- Downy/Hairy Woodpecker Dryobates pubescens/villosusLast observed by Anonymous eBirder on 20 Feb 2024
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Raymie Miller on 31 Aug 2023
- Loggerhead/Northern Shrike Lanius ludovicianus/borealisLast observed by Janet Macklin on 4 Dec 2017
- Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.Last observed by Vicki Buchman on 1 Feb 2024
- White-crowned/White-throated Sparrow Zonotrichia leucophrys/albicollisLast observed by Justin Gloede on 28 Apr 2021
- Rusty/Brewer's Blackbird Euphagus carolinus/cyanocephalusLast observed by Stewart Cole Pascale Manning on 17 Mar 2021
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by M Goddard on 30 Jul 2022
- Golden-winged/Blue-winged Warbler Vermivora chrysoptera/cyanopteraLast observed by Christy Rank on 10 May 2022
- Bay-breasted/Blackpoll Warbler Setophaga castanea/striataLast observed by Tom Ziebell on 24 Sep 2023