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Illustrated Checklist
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Native and Naturalized (290)
Exotic: Escapee (5)
Hybrids (4)
- Snow x Ross's Goose (hybrid) Anser caerulescens x rossiiLast observed by Lauri Taylor on 1 Nov 2020
- Blue-winged x Cinnamon Teal (hybrid) Spatula discors x cyanopteraLast observed by Dave Hanscom on 6 Apr 2014
- Mallard x Mexican Duck (hybrid) Anas platyrhynchos x diaziLast observed by Kenny Frisch on 8 Sep 2023
- Black-capped x Mountain Chickadee (hybrid) Poecile atricapillus x gambeliLast observed by Mike Malmquist on 19 Nov 2023
Additional Taxa (76)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Anonymous eBirder on 26 Jul 2021
- Common/Red-breasted Merganser Mergus merganser/serratorLast observed by Kimberly Roush on 3 Sep 2023
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Noel Dodge on 19 Jul 2021
- Western/Semipalmated Sandpiper Calidris mauri/pusillaLast observed by Stephanie Ritchie on 18 Apr 2024
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Kimberly Roush on 21 Jun 2023
- Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalusLast observed by Deanna McLaughlin on 11 Apr 2024
- Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseriLast observed by Bill Shepard on 16 May 2023
- solitary vireo sp. Vireo cassinii/solitarius/plumbeusLast observed by Kimberly Roush on 11 Sep 2021
- Black-capped/Mountain Chickadee Poecile atricapillus/gambeliLast observed by David Wheeler on 17 Mar 2024
- Tree/Violet-green Swallow Tachycineta bicolor/thalassinaLast observed by Joan Zealey on 16 May 2023
- Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapaLast observed by jeanne griffin on 26 Aug 2023