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Ulster
Illustrated Checklist
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Native and Naturalized (313)
Exotic: Escapee (7)
Hybrids (9)
- Snow x Ross's Goose (hybrid) Anser caerulescens x rossiiLast observed by scott baldinger on 25 Feb 2017
- Swan Goose x Canada Goose (hybrid) Anser cygnoides x Branta canadensisLast observed by Shai Mitra on 11 Mar 2017
- Graylag x Canada Goose (hybrid) Anser anser x Branta canadensisLast observed by James David Saul on 6 Mar 2022
- Barnacle x Canada Goose (hybrid) Branta leucopsis x canadensisLast observed by Wendy Tocci on 19 Jan 2019
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by Suzanne Osterman-Meyer on 30 May 2023
- Common x Barrow's Goldeneye (hybrid) Bucephala clangula x islandicaLast observed by Karen Maloy Brady on 26 Jan 2024
- Pine Siskin x American Goldfinch (hybrid) Spinus pinus x tristisLast observed by Ariane Giudicelli on 5 Dec 2018
- Brewster's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F1 hybrid)Last observed by R Miller on 19 May 2019
- Lawrence's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F2 backcross)Last observed by Dixon Onderdonk on 12 May 2021
Additional Taxa (72)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Peter Schoenberger on 5 Oct 2023
- Cackling/Canada Goose Branta hutchinsii/canadensisLast observed by Kenneth McDermott on 24 Jan 2017
- Common/Red-breasted Merganser Mergus merganser/serratorLast observed by Jennifer Gill on 6 Apr 2024
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by d w on 8 Jul 2023
- Rufous/Allen's Hummingbird Selasphorus rufus/sasinLast observed by New York State Avian Records Committee - Published Record on 14 Nov 2012
- Great/Double-crested Cormorant Phalacrocorax carbo/Nannopterum auritumLast observed by Debra Ferguson on 25 Nov 2018
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Lawrence Cole on 14 Mar 2024
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Robert Howard on 6 Sep 2023
- Philadelphia/Warbling Vireo Vireo philadelphicus/gilvusLast observed by Michelle Sutton on 21 Sep 2023
- Philadelphia/Red-eyed Vireo Vireo philadelphicus/olivaceusLast observed by Jacob Socolar on 14 May 2022
- Carolina/Black-capped Chickadee Poecile carolinensis/atricapillusLast observed by Peter Schoenberger on 6 Apr 2020
- Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapaLast observed by KZ F on 3 Oct 2021
- Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.Last observed by Susan LeVangia on 24 Apr 2022
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by Elias Markee-Ratner on 15 Jul 2023
- Golden-winged/Blue-winged Warbler Vermivora chrysoptera/cyanopteraLast observed by Alyse Dietrich on 9 May 2020
- Bay-breasted/Blackpoll Warbler Setophaga castanea/striataLast observed by Elias Markee-Ratner on 8 Oct 2023