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Natrona
Illustrated Checklist
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Native and Naturalized (350)
Exotic: Escapee (5)
Hybrids (7)
- Redhead x scaup sp. (hybrid) Aythya americana x marila/affinisLast observed by Flocking Around on 2 May 2017
- Common x Barrow's Goldeneye (hybrid) Bucephala clangula x islandicaLast observed by Jack Bushong on 29 Nov 2021
- goldeneye sp. x Hooded Merganser (hybrid) Bucephala clangula/islandica x Lophodytes cucullatusLast observed by Flocking Around on 11 Dec 2016
- Black-capped x Mountain Chickadee (hybrid) Poecile atricapillus x gambeliLast observed by Flocking Around on 9 Dec 2017
- Bullock's x Baltimore Oriole (hybrid) Icterus bullockii x galbulaLast observed by Morgan Amos on 12 May 2022
- Lazuli x Indigo Bunting (hybrid) Passerina amoena x cyaneaLast observed by Flocking Around on 16 May 2021
Additional Taxa (77)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Alayna Mellin on 30 Sep 2021
- Western/Clark's Grebe Aechmophorus occidentalis/clarkiiLast observed by Julia Auckland on 14 Nov 2023
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Sienna Hawk on 6 May 2019
- large shorebird sp. Scolopacidae sp. (large shorebird sp.)Last observed by Susan Savage on 15 Oct 2023
- Double-crested/Neotropic Cormorant Nannopterum auritum/brasilianumLast observed by Flocking Around on 5 May 2019
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Christopher Schafer on 21 Dec 2023
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Carol Miller on 16 May 2021
- Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseriLast observed by Veronica Peterson on 30 May 2019
- Cassin's/Western Kingbird Tyrannus vociferans/verticalisLast observed by Alayna Mellin on 11 Aug 2021
- Loggerhead/Northern Shrike Lanius ludovicianus/borealisLast observed by Sally Heineke on 2 Aug 2023
- Black-capped/Mountain Chickadee Poecile atricapillus/gambeliLast observed by Celia Muncy on 26 Mar 2024
- Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.Last observed by Ann Hines on 31 Aug 2021