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Assateague SP--Causeway
Illustrated Checklist
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Native and Naturalized (215)
Hybrids (1)
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Ethan Green on 2 Mar 2019
Additional Taxa (29)
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Maren Gimpel on 27 Jul 2014
- Great/Double-crested Cormorant Phalacrocorax carbo/Nannopterum auritumLast observed by Will Morris on 26 Feb 2017