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**Back Bay NWR
Illustrated Checklist
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Native and Naturalized (333)
Exotic: Escapee (3)
Hybrids (1)
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Steve Heinl on 12 Jan 2023
Additional Taxa (71)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Erik Schroeder on 1 Jan 2023
- Mallard/American Black Duck Anas platyrhynchos/rubripesLast observed by Rob Bielawski on 7 Apr 2024
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Andrew Baldelli on 3 Sep 2022
- Ruby-throated/Black-chinned Hummingbird Archilochus colubris/alexandriLast observed by Rob Bielawski on 13 Nov 2022
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Elena Bersani on 10 May 2024
- Great/Double-crested Cormorant Phalacrocorax carbo/Nannopterum auritumLast observed by Louis Rajnys on 31 Oct 2016
- Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violaceaLast observed by Rob Bielawski on 25 Jun 2023
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Tommy Maloney on 7 Apr 2024
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Karen & Tom Beatty on 31 May 2019
- House/Purple Finch Haemorhous mexicanus/purpureusLast observed by Ryan and Kathryn Carr on 29 Mar 2021
- Nelson's/Saltmarsh Sparrow (Sharp-tailed Sparrow) Ammospiza nelsoni/caudacutaLast observed by Edward Brinkley on 15 Mar 2019
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by Michelle Reinert on 13 Oct 2023
- Bay-breasted/Blackpoll Warbler Setophaga castanea/striataLast observed by Andrew Baldelli on 26 Sep 2023