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Gibson
Illustrated Checklist
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Native and Naturalized (295)
Hybrids (2)
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Mark Greene on 24 Feb 2015
- Lawrence's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F2 backcross)Last observed by Mark Greene on 18 Sep 1994
Additional Taxa (20)
- Trumpeter/Tundra Swan Cygnus buccinator/columbianusLast observed by West Tennessee Historical Data on 2 Jan 2023
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Mark Greene on 10 Sep 2021