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Adams
Illustrated Checklist
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Native and Naturalized (291)
Exotic: Escapee (3)
Hybrids (2)
- Eurasian x American Wigeon (hybrid) Mareca penelope x americanaLast observed by Mike Clarke on 22 Mar 2014
- Western x Glaucous-winged Gull (hybrid) Larus occidentalis x glaucescensLast observed by Jon Isacoff on 1 Apr 2014
Additional Taxa (70)
- Western/Clark's Grebe Aechmophorus occidentalis/clarkiiLast observed by Micah Anderson on 25 Jun 2023
- American/Pacific Golden-Plover (Lesser Golden-Plover) Pluvialis dominica/fulvaLast observed by Bill Tweit on 5 Sep 1993
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Laurie Ness on 4 May 2023
- Western/Semipalmated Sandpiper Calidris mauri/pusillaLast observed by Jacob Crawford on 22 Jul 2023
- Western/Glaucous-winged Gull Larus occidentalis/glaucescensLast observed by Penny Rose on 10 Apr 2010
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Darchelle Worley on 22 Sep 2023
- Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalusLast observed by Andy Stepniewski on 26 Mar 2019
- Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseriLast observed by Stephanie Stragier on 10 Sep 2023
- Cassin's/Blue-headed Vireo Vireo cassinii/solitariusLast observed by Nancy & Bill LaFramboise on 25 Aug 2023
- Tree/Violet-green Swallow Tachycineta bicolor/thalassinaLast observed by Mike & MerryLynn Denny on 22 Mar 2024
- Red-winged/Tricolored Blackbird Agelaius phoeniceus/tricolorLast observed by Jason Fidorra on 24 Apr 2024
- MacGillivray's/Mourning Warbler Geothlypis tolmiei/philadelphiaLast observed by Vic Hubbard on 25 Aug 2023
- Rose-breasted/Black-headed Grosbeak Pheucticus ludovicianus/melanocephalusLast observed by Nancy & Bill LaFramboise on 21 Sep 2019