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Warren
Illustrated Checklist
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Native and Naturalized (304)
Exotic: Escapee (9)
Hybrids (12)
- Snow x Ross's Goose (hybrid) Anser caerulescens x rossiiLast observed by Lisa Carol Wolf on 6 Feb 2021
- Barnacle x Cackling Goose (hybrid) Branta leucopsis x hutchinsiiLast observed by Milton Collins on 13 Dec 2021
- Greater White-fronted x Canada Goose (hybrid) Anser albifrons x Branta canadensisLast observed by Alan Boyd on 18 Jan 2022
- Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensisLast observed by Alan Boyd on 13 Dec 2020
- Snow x Canada Goose (hybrid) Anser caerulescens x Branta canadensisLast observed by Lisa Carol Wolf on 4 Dec 2023
- Muscovy Duck x Mallard (hybrid) Cairina moschata x Anas platyrhynchosLast observed by Marianne Ofenloch on 12 Jan 2014
- Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripesLast observed by David Bernstein on 13 Mar 2024
- Carolina x Black-capped Chickadee (hybrid) Poecile carolinensis x atricapillusLast observed by Jerald Reb on 14 Mar 2019
- Golden-winged x Blue-winged Warbler (hybrid) Vermivora chrysoptera x cyanopteraLast observed by Max McCarthy on 29 Aug 2021
- Brewster's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F1 hybrid)Last observed by Vicki Schwartz on 28 May 2023
- Lawrence's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F2 backcross)Last observed by Silas Hernandez on 15 Aug 2020
- Magnolia x Yellow-rumped Warbler (hybrid) Setophaga magnolia x coronataLast observed by Mitch Erickson on 9 Jun 2012
Additional Taxa (68)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Alan Boyd on 16 Mar 2024
- Surf/Black Scoter Melanitta perspicillata/americanaLast observed by Kristin Mylecraine on 20 Nov 2023
- Common/Barrow's Goldeneye Bucephala clangula/islandicaLast observed by August Mirabella on 12 Mar 2019
- Common/Red-breasted Merganser Mergus merganser/serratorLast observed by Kristin Mylecraine on 21 Nov 2023
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Kevin Cronin on 5 Aug 2020
- Lesser/Greater Yellowlegs Tringa flavipes/melanoleucaLast observed by Denise Erickson on 25 May 2023
- Herring/Lesser Black-backed Gull Larus argentatus/fuscusLast observed by Gavin Aquila on 6 Mar 2017
- Great/Double-crested Cormorant Phalacrocorax carbo/Nannopterum auritumLast observed by David Harrison on 3 Jul 1989
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Marissa Mizeski on 30 Mar 2024
- diurnal raptor sp. Accipitriformes/Falconiformes sp.Last observed by Silas Hernandez on 16 Dec 2023
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Kristin Mylecraine on 12 Sep 2023
- Carolina/Black-capped Chickadee Poecile carolinensis/atricapillusLast observed by Tom Smith on 14 Apr 2024
- Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapaLast observed by Sylvie Marrese on 24 Feb 2024
- Gray-cheeked/Bicknell's Thrush Catharus minimus/bicknelliLast observed by Silas Hernandez on 27 Sep 2018
- Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.Last observed by Ray Duffy on 30 Oct 2008
- White-crowned/White-throated Sparrow Zonotrichia leucophrys/albicollisLast observed by isaac symonds on 21 Mar 2023
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by Kevin Berkoff on 1 Jun 2023
- Golden-winged/Blue-winged Warbler Vermivora chrysoptera/cyanopteraLast observed by Lisa Carol Wolf on 15 May 2023
- Bay-breasted/Blackpoll Warbler Setophaga castanea/striataLast observed by Bradley White on 21 Sep 2023