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Yellowstone NP--W. Entrance Rd./Madison Riv.
Illustrated Checklist
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Native and Naturalized (157)
Hybrids (1)
- Common Goldeneye x Hooded Merganser (hybrid) Bucephala clangula x Lophodytes cucullatusLast observed by Christian Hagenlocher on 13 Jan 2020
Additional Taxa (24)
- Trumpeter/Tundra Swan Cygnus buccinator/columbianusLast observed by Bernard Quetchenbach on 6 Oct 2018
- Blue-winged/Cinnamon Teal Spatula discors/cyanopteraLast observed by Daniel Froehlich on 5 Sep 2023
- Common/Barrow's Goldeneye Bucephala clangula/islandicaLast observed by Fleeta Chauvigne on 26 Jan 2023
- diurnal raptor sp. Accipitriformes/Falconiformes sp.Last observed by Alison Schroeder on 1 May 2022
- Black-capped/Mountain Chickadee Poecile atricapillus/gambeliLast observed by Forrest Corcoran on 10 Apr 2018
- Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.Last observed by Joe Lepisto on 17 Aug 2016