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Patuxent River Park--Jackson Landing
Illustrated Checklist
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Native and Naturalized (234)
Hybrids (2)
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Matt Felperin on 8 Oct 2020
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Robert Ostrowski on 2 Feb 2011
Additional Taxa (45)
- Mallard/American Black Duck Anas platyrhynchos/rubripesLast observed by Alex Pellegrini on 14 Mar 2024
- Common/Red-breasted Merganser Mergus merganser/serratorLast observed by Alex Pellegrini on 30 Dec 2022
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Lisa Garrett on 18 Jul 2020
- Lesser/Greater Yellowlegs Tringa flavipes/melanoleucaLast observed by Alex Pellegrini on 13 May 2023
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Jeffrey Fuller on 5 Jan 2024
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by John Harris on 21 May 2022
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by Elle McGee on 20 Feb 2023