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Ohio State University--Waterman Farm
Illustrated Checklist
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Native and Naturalized (194)
Hybrids (3)
- Swan Goose x Canada Goose (hybrid) Anser cygnoides x Branta canadensisLast observed by Robert Thorn on 6 Dec 1996
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Leslie Sours on 6 Dec 2023
- Brewster's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F1 hybrid)Last observed by irina shulgina on 13 May 2020
Additional Taxa (28)
- Mallard/American Black Duck Anas platyrhynchos/rubripesLast observed by Andrew Muresan on 3 Mar 2021
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Brett Lambert on 6 Mar 2024
- Downy/Hairy Woodpecker Dryobates pubescens/villosusLast observed by Lisa Riemenschneider on 15 Feb 2020
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Alex Eberts on 20 May 2022
- Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.Last observed by Sheila and Ed Bremer on 7 Jan 2018