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School St. Fields, Acton
Illustrated Checklist
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Native and Naturalized (138)
Exotic: Escapee (1)
Hybrids (2)
- Graylag x Canada Goose (hybrid) Anser anser x Branta canadensisLast observed by David Sibley on 14 Nov 2012
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by William Martens on 7 Nov 2018
Additional Taxa (20)
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Erik Zilinek on 28 Jul 2023