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Wasco
Illustrated Checklist
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Native and Naturalized (294)
Exotic: Escapee (2)
Hybrids (9)
- Mallard x Northern Pintail (hybrid) Anas platyrhynchos x acutaLast observed by Stuart Johnston on 10 Apr 2013
- Common x Barrow's Goldeneye (hybrid) Bucephala clangula x islandicaLast observed by Ken Binder on 13 Dec 2022
- Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreusLast observed by Linnaea Basden on 24 Dec 2021
- Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescensLast observed by CJ FLICK on 30 Mar 2024
- Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescensLast observed by Philip Kline on 26 Nov 2022
- Glaucous x Glaucous-winged Gull (hybrid) Larus hyperboreus x glaucescensLast observed by Nolan Clements on 24 Oct 2020
- Red-naped x Red-breasted Sapsucker (hybrid) Sphyrapicus nuchalis x ruberLast observed by David Irons on 24 Jun 2023
- Black-capped x Mountain Chickadee (hybrid) Poecile atricapillus x gambeliLast observed by Brodie Cass Talbott on 20 Dec 2020
- Townsend's x Hermit Warbler (hybrid) Setophaga townsendi x occidentalisLast observed by Jay Withgott on 3 Sep 2021
Additional Taxa (73)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Ken Chamberlain on 20 Dec 2023
- Trumpeter/Tundra Swan Cygnus buccinator/columbianusLast observed by Andrew S. Aldrich on 30 Dec 2023
- Blue-winged/Cinnamon Teal Spatula discors/cyanopteraLast observed by Stuart Johnston on 13 Sep 2021
- Common/Barrow's Goldeneye Bucephala clangula/islandicaLast observed by Stuart Johnston on 3 Feb 2024
- Western/Clark's Grebe Aechmophorus occidentalis/clarkiiLast observed by Sarah Joannides on 24 Feb 2024
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Andrew S. Aldrich on 26 Aug 2023
- Western/Glaucous-winged Gull Larus occidentalis/glaucescensLast observed by Sean Fitzgerald on 19 Feb 2020
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Kyle Landstra on 7 Apr 2024
- Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalusLast observed by CJ FLICK on 26 Nov 2018
- Red-naped/Red-breasted Sapsucker Sphyrapicus nuchalis/ruberLast observed by Frank Fogarty on 18 May 2023
- Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseriLast observed by Andrew S. Aldrich on 4 Jul 2023
- California/Woodhouse's Scrub-Jay Aphelocoma californica/woodhouseiiLast observed by Sher Schwartz on 30 Nov 2016
- Tree/Violet-green Swallow Tachycineta bicolor/thalassinaLast observed by Flora Gibson on 18 Apr 2023
- Black-throated Gray/Hermit Warbler Setophaga nigrescens/occidentalisLast observed by Jay Withgott on 17 Jun 2023
- Townsend's/Hermit Warbler Setophaga townsendi/occidentalisLast observed by Andrew S. Aldrich on 25 Aug 2023