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Illustrated Checklist
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Native and Naturalized (328)
Exotic: Escapee (7)
Hybrids (16)
- Greater White-fronted x Canada Goose (hybrid) Anser albifrons x Branta canadensisLast observed by Matt Yawney on 12 Nov 2022
- Graylag x Canada Goose (hybrid) Anser anser x Branta canadensisLast observed by Lisa Hansen on 20 May 2020
- Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensisLast observed by Matt Yawney on 10 Aug 2022
- Snow x Canada Goose (hybrid) Anser caerulescens x Branta canadensisLast observed by Gina Sheridan on 26 Mar 2002
- Blue-winged x Cinnamon Teal (hybrid) Spatula discors x cyanopteraLast observed by Ryan Merrill on 30 May 2010
- Eurasian x American Wigeon (hybrid) Mareca penelope x americanaLast observed by Matt Yawney on 18 Feb 2024
- Mallard x Northern Pintail (hybrid) Anas platyrhynchos x acutaLast observed by Tasha Dimarzio on 27 Mar 2024
- Ring-necked Duck x Lesser Scaup (hybrid) Aythya collaris x affinisLast observed by Steven Mlodinow on 3 Jul 2009
- Tufted Duck x scaup sp. (hybrid) Aythya fuligula x marila/affinisLast observed by Nolan A. Walker on 9 Mar 2024
- Western x Clark's Grebe (hybrid) Aechmophorus occidentalis x clarkiiLast observed by Jamie Acker on 23 May 2023
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Matt Yawney on 10 Dec 2022
- Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescensLast observed by Matt Yawney on 5 Nov 2020
- Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescensLast observed by Dan Waggoner on 12 Mar 2011
- Red-naped x Red-breasted Sapsucker (hybrid) Sphyrapicus nuchalis x ruberLast observed by Lisa Hansen on 2 Mar 2024
- Black-capped x Mountain Chickadee (hybrid) Poecile atricapillus x gambeliLast observed by Ryan Merrill on 28 Nov 2020
- Violet-green x Northern Rough-winged Swallow (hybrid) Tachycineta thalassina x Stelgidopteryx serripennisLast observed by Steven Mlodinow on 4 Jul 2012
Additional Taxa (92)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Kurtis Kuykendall on 20 Apr 2024
- Common/Red-breasted Merganser Mergus merganser/serratorLast observed by Shey Claflin on 11 Feb 2018
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Cathy Strickland on 25 Sep 2023
- Western/Semipalmated Sandpiper Calidris mauri/pusillaLast observed by Charlie Bostwick on 10 Aug 2021
- Long-tailed/Parasitic Jaeger Stercorarius longicaudus/parasiticusLast observed by Matt Yawney on 14 Sep 2015
- Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalusLast observed by Bartholomew Birdee on 11 Mar 2024
- Western/Eastern Wood-Pewee Contopus sordidulus/virensLast observed by Whittier Johnson on 31 Aug 2013
- Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseriLast observed by Ben Meredyk on 1 Sep 2020
- Loggerhead/Northern Shrike Lanius ludovicianus/borealisLast observed by Brad Danielson on 22 Aug 2020
- Tree/Violet-green Swallow Tachycineta bicolor/thalassinaLast observed by Cathy Strickland on 23 Apr 2024
- Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapaLast observed by Shey Claflin on 11 Feb 2018