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Gwynedd Wildlife Preserve (closed Tuesdays)
Illustrated Checklist
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Native and Naturalized (182)
Exotic: Escapee (1)
Hybrids (2)
- Snow x Canada Goose (hybrid) Anser caerulescens x Branta canadensisLast observed by Matthew Jewell on 7 Oct 2017
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by August Mirabella on 19 Oct 2017
Additional Taxa (44)
- Mallard/American Black Duck Anas platyrhynchos/rubripesLast observed by Brian Henderson on 14 Feb 2015
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Jason Harris on 11 May 2018
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Samuel Perloff on 12 Jan 2024
- Red-shouldered/Broad-winged Hawk Buteo lineatus/platypterusLast observed by Kenneth Rieker on 11 Sep 2017
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Thomas Mason on 26 Aug 2016
- Carolina/Black-capped Chickadee Poecile carolinensis/atricapillusLast observed by Samuel Perloff on 25 Mar 2024
- Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapaLast observed by Dan Lanzo on 24 Dec 2021
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by Pedro Miranda on 14 May 2018
- Bay-breasted/Blackpoll Warbler Setophaga castanea/striataLast observed by Andrew Albright on 29 Sep 2022