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Prince William
Illustrated Checklist
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Native and Naturalized (311)
Exotic: Escapee (12)
Hybrids (6)
- Graylag x Canada Goose (hybrid) Anser anser x Branta canadensisLast observed by David Ledwith on 1 Jan 2023
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Ethan Green on 18 Feb 2024
- Mallard x Northern Pintail (hybrid) Anas platyrhynchos x acutaLast observed by David Larsen on 11 Jan 2017
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Marc Ribaudo on 23 Dec 2018
- Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescensLast observed by Steve Rottenborn on 31 Dec 2001
- Lawrence's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F2 backcross)Last observed by Linda Chittum on 29 Aug 2015
Additional Taxa (77)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Modesto Santiago on 17 Jul 2022
- Mallard/American Black Duck Anas platyrhynchos/rubripesLast observed by Elise Manassee on 18 Feb 2024
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Amiel Hopkins on 11 Sep 2021
- large shorebird sp. Scolopacidae sp. (large shorebird sp.)Last observed by John Aleknavage on 2 Nov 2023
- diurnal raptor sp. Accipitriformes/Falconiformes sp.Last observed by Greyson Stewart on 10 Oct 2021
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Phil Kenny on 12 Aug 2023
- Carolina/Black-capped Chickadee Poecile carolinensis/atricapillusLast observed by Mona Peloquin on 16 Feb 2014
- Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapaLast observed by Anonymous eBirder on 28 Feb 2018
- Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.Last observed by Toby Hardwick on 17 Nov 2022
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by Catherine Swinsky on 8 Aug 2023
- Bay-breasted/Blackpoll Warbler Setophaga castanea/striataLast observed by Diana Handy on 16 Sep 2023