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Head of the Ohio River (incl. Point SP)
Illustrated Checklist
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Native and Naturalized (141)
Hybrids (3)
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Jonathan Wright on 9 Oct 2022
- Herring x Great Black-backed Gull (hybrid) Larus argentatus x marinusLast observed by Geoff Malosh on 26 Feb 2015
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Geoff Malosh on 12 Feb 2018
Additional Taxa (17)
- Carolina/Black-capped Chickadee Poecile carolinensis/atricapillusLast observed by Ron Burkert on 18 Jan 2024