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Wissahickon Waterfowl Preserve
Illustrated Checklist
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Native and Naturalized (198)
Exotic: Escapee (1)
Hybrids (2)
- Snow x Canada Goose (hybrid) Anser caerulescens x Branta canadensisLast observed by Curt Dunn on 14 Jan 2024
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Matthew Hartwell on 2 Mar 2024
Additional Taxa (45)
- Mallard/American Black Duck Anas platyrhynchos/rubripesLast observed by Jane Henderson on 13 Sep 2023
- Common/Red-breasted Merganser Mergus merganser/serratorLast observed by Andrew Albright on 12 Mar 2016
- Lesser/Greater Yellowlegs Tringa flavipes/melanoleucaLast observed by Steven Grunwald on 23 Apr 2024
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Redmond Brubaker on 22 Aug 2023
- Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapaLast observed by Redmond Brubaker on 20 Oct 2021