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Rumney Marsh (Essex Co.)
Illustrated Checklist
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Native and Naturalized (167)
Exotic: Escapee (1)
Hybrids (1)
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Liam Waters on 19 Jan 2019
Additional Taxa (19)
- Mallard/American Black Duck Anas platyrhynchos/rubripesLast observed by Nicole Werth on 18 May 2021
- Nelson's/Saltmarsh Sparrow (Sharp-tailed Sparrow) Ammospiza nelsoni/caudacutaLast observed by Alan Trautmann on 2 Nov 2017