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York
Illustrated Checklist
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Native and Naturalized (295)
Exotic: Escapee (7)
Hybrids (9)
- Swan Goose x Canada Goose (hybrid) Anser cygnoides x Branta canadensisLast observed by Dean Newhouse on 17 Jan 2019
- Graylag x Canada Goose (hybrid) Anser anser x Branta canadensisLast observed by Steve Schmit on 7 Oct 2017
- Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensisLast observed by Matt Hunter on 21 Jan 2020
- Eurasian x American Wigeon (hybrid) Mareca penelope x americanaLast observed by bill hintze on 17 Feb 2014
- Muscovy Duck x Mallard (hybrid) Cairina moschata x Anas platyrhynchosLast observed by Bob Reiter on 1 Jun 2023
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by John Manger on 2 Dec 2023
- Tufted Duck x scaup sp. (hybrid) Aythya fuligula x marila/affinisLast observed by Alice Simmons on 7 Apr 2024
- Carolina x Black-capped Chickadee (hybrid) Poecile carolinensis x atricapillusLast observed by Debra Carman on 15 Feb 2023
- Lawrence's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F2 backcross)Last observed by Alice Simmons on 23 May 2021
Additional Taxa (44)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Evan Vaeth on 7 Mar 2021
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Chuck Berthoud on 28 Aug 2015
- Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalusLast observed by Lynn Maxwell on 7 Mar 2024
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by michael cox on 28 Sep 2023
- Carolina/Black-capped Chickadee Poecile carolinensis/atricapillusLast observed by Allison Matlock on 16 Apr 2024
- Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapaLast observed by Chuck Berthoud on 19 Oct 2023
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by William Clifton on 2 May 2014